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Multispectral Imaging of Leonardo da Vinci Drawings

By Cerys R Jones, on 16 June 2019

In the first year of my PhD, I was asked by Alan Donnithorne, the former head of conservation of prints for the Royal Collection Trust, whether I would be interested in capturing multispectral images of three Leonardo drawings for a book he was writing. Of course I eagerly agreed and in July 2016 Alan brought three beautiful studies by Leonardo to UCL ready for imaging.

The first drawing was the ‘Studies of horses and horses’ heads’ created circa 1481. This is a metalpoint drawing of the portrait of a horse’s head and another in side-profile. To create a metalpoint drawing, a metal-nibbed stylus is used to engrave lines onto paper that has been prepped with glue and ground animal bone, whilst also leaving a deposit of the metal. Although only two horses heads could be seen in visible light, when illuminated in ultraviolet light, two more horses and a dog appeared at the bottom of the page that were invisible to the human eye.

‘Studies of horses and horses’ heads’ illuminated under visible light (left) and after multispectral imaging (right). The two horses and dog at the bottom of the page cannot be seen using the human eye alone. (Image copyright: Queen Elizabeth II, Moral rights: Cerys Jones)

The second drawing was of ‘the anatomy of a bear’s foot’, circa 1488-90. Leonardo initially studied anatomy to inform his paintings;however,this eventually evolved into a plan to write a never-completed treatise on the subject. Martin Clayton, in his 2019 book Leonardo da Vinci: a life in drawing, explained how, at the time, human dissection was illegal and so Leonardo may have been interested in the bear’s foot due to the similarity in the way humans and bears walk. The multispectral imaging of this drawing enabled the different materials (metalpoint, pen and ink, and white heightening) to be separated and show how Leonardo built up his compositions.

The final drawing was a study for ‘the drapery of the Madonna’s arm’ (c. 1510-1515) created for ‘the Madonna and Child with St Anne and a lamb’, a painting currently in the Louvre Museum in Paris. The multispectral imaging revealed the outline of the arm under the drapery,implying that Leonardo first drew a template for the arm and then built the drapery on top of that . The images also enhanced the different materials, including black and red chalk, pen and ink, brush and ink, and white opaque watercolour.

Capturing the multispectral images of the study for ‘the drapery of the Madonna’s arm’. (Image: Cerys Jones)

The full results from this imaging are in Alan’s book Leonardo da Vinci: A Closer Look. This fascinating book investigates many of the Leonardo da Vinci drawings held in the collection at Windsor Library, using a variety of imaging techniques, including multispectral imaging, microscopy, X-Ray fluorescence, and more. He shows Leonardo’s drawings in a way never seen before—including these features invisible to the human eye—to present a detailed view of Leonardo’s musings and thoughtful mind.

The studies for ‘the anatomy of the bear foot’ and ‘the drapery of the Madonna’s arm’ are currently on display in the Queen’s gallery as part of the new exhibition Leonardo da Vinci: a life in drawing to commemorate the 500-year anniversary of Leonardo’s death. This exhibition displays over 200 drawings from Leonardo’s life, spanning a range of topics including anatomy, optics, engineering, botany, cartography and more. I was honoured to be invited to a private view of the exhibition before it was open to the public to celebrate Leonardo’s work and the release of the book. The exhibition is captivating and provides a fascinating insight into Leonardo’s mind, which you can see jumping across subjects on a single piece of paper. I encourage everyone to attend and be inspired by Leonardo’s inquisitive and ingenious mind.

If you’re interested in learning more about my work on the Leonardo drawings, check out my poster!

At the private view of the Leonardo da Vinci: a life in drawing exhibition at the Queens Gallery in Buckingham Palace (Image: Cerys Jones)

The Imperial Gentleman of China

By Carolyn Thompson, on 3 July 2018

I am a primatologist; that is, a scientist who studies the behaviour, abundance and conservation status of monkeys, lemurs and apes. My specialty area and the focus of my PhD research here at University College London, is the plight of the gibbons, the smallest of the apes.

The Skywalker Hoolock gibbon (Hoolock tianxing). Photograph taken on Carolyn Thompson’s recent field trip to China. (Photo credit: Carolyn Thompson)

Gibbons are often forgotten in the shadow of their great cousins — the orangutans, chimpanzees, bonobos and gorillas — receiving less funding, as well as research and media attention. This is very unfortunate seeing as 19 of the 20 species are on the brink of extinction. The Hainan gibbon, for example, is the world’s rarest primate with a mere 26 individuals making up their entire global population.

I am always thrilled therefore to see media articles raising some much needed gibbon awareness, even if the news story doesn’t always paint us humans in the best light.

In 2004, one of my supervisors from the Zoological Society of London, stumbled across a gibbon skull inside a tomb in Xi’an, Shaanxi Province, China. The skull is believed to be ca. 2,200-2,300 years old and the potential property of Lady Xia, the grandmother of China’s first emperor, Qin Shihuang, who is famous for his striking terracotta army. Inside this ancient tomb was a whole menagerie of other animal skeletons including a crane, bear and a leopard — yet another example of human-animal relationships that have dated back millennia.

The skull of Junzi imperialis. (Photo credit: Samuel Turvey).

Although this exciting discovery could tell us a lot about our evolutionary shared ancestry with gibbon species, there are still many unanswered questions. We are unsure if the skull, now said to belong to Junzi imperalis (meaning the ‘imperial man of virtue’ due to the strong historical relationship between humans and gibbons in Chinese culture) is in fact a new species and where it came from. There are strong indicators, however, suggesting that this potentially new species of gibbon could be the first ape to have vanished off the face of the earth due to human pressures. Now extinct, we need to look at our current impact on the planet to ensure we don’t do the same with our other cousins.

Part of my PhD research examines the relationship between humans and animals, especially amongst local communities found in gibbon habitat regions. This intrigue, along with my love of mingling with the public, led me to my new role as a Student Engager in the UCL museums. For example, the Ancient Egyptians also had a strong connection with animals which I hope to explore over the coming months in the UCL Petrie Museum, and the Grant Museum of Zoology also has a couple of gibbon skeletons hanging around. Come and see for yourself!

In the meantime, keep your eyes peeled for my upcoming blogs on Twitter: @gibbonresearch and @ResearchEngager

Season’s (Philosophical) Feastings

By Hannah L Wills, on 13 December 2017

Christmas is a time for overindulgence, so let’s have some tales of eighteenth-century feasting, with a twist from the history of science.

In my research, I examine the diary of Charles Blagden (1748-1820), physician, natural philosopher, and secretary to London’s Royal Society. One of the things I’ve been most struck by in my work on Blagden’s diary is the ever-presence of food and feasting within the social and scientific worlds of the late eighteenth century. Blagden’s diary reveals a near-daily itinerary of dining engagements where politicians, fellows of the Royal Society, and members of London’s well-to-do gathered to discuss news, politics, and the latest developments in natural knowledge over a range of lavish and often exotic meals. 

Scientific gatherings and feasts

A typical day for Blagden in the year 1795 began with a trip to the London home of Sir Joseph Banks, president of the Royal Society, for breakfast. Though the diary gives little indication of the food on offer, it does reveal that at these gatherings participants discussed news, politics, and natural philosophy, all over breakfast. On some occasions, Blagden and Banks conducted experiments, as revealed in Blagden’s diary entry for 19 February 1795: ‘Breakfasted at Sir Joseph Banks’s. all civil: made some experiments on crystallisation of nitre’.[i] This experiment was one that investigated the properties of a key ingredient in the manufacture of saltpetre (potassium nitrate) used in the manufacture of explosives.

On Thursdays, before the weekly meetings of the Royal Society, Blagden attended the Royal Society Club, a dining club for fellows of the Society held at the Crown and Anchor Inn on the Strand. While meetings of the club were intended to be social, scientific matters were inevitably discussed while members feasted on a variety of foods.[ii] The Royal Society archives contain some of the menus from these meetings, which at a dinner held on 23 October 1783 included ‘A Turtle’, which had for several days before the dinner been allowed to roam at Banks’s London home, ‘Scate’ (the fish skate), ‘Harricot of Mutton’ (a mutton stew), ‘a Hare’, ‘another dish of Turtle’, ‘Potatoes’, ‘Cold Ribs of Lamb’, ‘Breast of Veal’, ‘Haddock’ and finally ‘more of the Turtle’.[iii]

Feasting as research

As well as being a convivial aid to the discussion of natural philosophical topics, eating was also a central part of investigating nature. At gatherings hosted by Banks, visitors indulged in the consumption of various plants and animals, many sourced from exotic locations. One entry in Blagden’s diary reveals a particular gathering during which guests enjoyed several nuts brought by the botanist Richard Molesworth, named in Blagden’s diary as ‘Buticosa’ and ‘Sawena’. Blagden described them as ‘both pleasant to eat; one a sort of buttery nut, the other larger & more like walnut’.[iv]

Such behaviour might seem eccentric and even dangerous to us depending on the kinds of exotic fare on offer. Banks was frequently targeted by contemporary satire with his ‘philosophical’ feasting caricatured in a sketch by the artist Thomas Rowlandson. In ‘The Fish Supper’ (below) we see Banks’s guests, possibly including Blagden, eagerly preparing to devour an alligator specimen, while Banks, on the right-hand side of the image, greedily gnaws on a snake.

Thomas Rowlandson, Sir Joseph Banks about to Eat an Alligator (‘The Fish Supper’), 1788, ink and watercolour on paper (Image credit: © Tate (2014), CC-BY-NC-ND 3.0 Unported)

 

Festive feasting, with a bang

Experiments combined with dining did on occasion produce dangerous results. For a final festive example, we turn to an anecdote of the earlier eighteenth century. On Christmas Day 1750, Blagden’s contemporary Benjamin Franklin conducted an ill-fated experiment in cooking a turkey. Though today perhaps best known as one of the founding fathers of America, Franklin was also a renowned natural philosopher, famed for his electrical experiments. In April 1749, Franklin wrote a letter detailing an experiment he intended to make where ‘A turkey is to be killed for our dinner by the electrical shock, and roasted by the electrical jack’.[v] Franklin repeated this experiment on Christmas Day the following year with disastrous results, describing it as:

an Experiment in Electricity that I desire never to repeat… I inadvertently took the whole [shock] thro’ my own Arms and Body… the flash was very great and the crack as loud as a Pistol; yet my Senses being instantly gone, I neither Saw the one nor heard the other’.[vi]

Franklin’s turkey cooking is definitely a dining experiment not to be tried at home!

 

 

References:

[i] Royal Society Library, Charles Blagden’s Diary Vol 3, entry dated 19 Feb 1795, f. 47r.

[ii] For more information on the dining clubs of the Royal Society, including its membership, see T. E. Allibone, The Royal Society and Its Dining Clubs (Oxford: Pergamon Press, 1976).

[iii] Ibid., 121.

[iv] Royal Society Library, Charles Blagden’s Diary Vol 3, entry dated 17 Oct 1795, f. 70v.

[v] Meredith Man, ‘Ben Franklin on Cooking Turkey… with Electricity’, blog post for the New York Public Library website, published on 24 Nov 2014.

[vi] Ronald Clark, Benjamin Franklin: A Biography (London: Weidenfeld and Nicholson, 1983), 76.

This Little Piggy went to Market…

By uctzcbr, on 6 December 2017

One of the objects on display as part of the Grant’s Ordinary Animals exhibition is a jar of piglets. These particular specimens often receive a lot of attention, probably because the piglets are so small and visitors are surprised to discover what they are. I was happy to see them included in the exhibition because piglets are used by other researchers in my department (the Department of Crime and Security Science) and so they provide a useful launching pad to engage visitors in my research.

The specimen in question, courtesy of the Grant Museum.

This tactic has had varying success. The way pigs are used in Crime Research is fascinating but can also be a bit gruesome — perhaps too gruesome for some visitors. Pig skin, and flesh, is similar to that of humans and so can be used to conduct experiments in the absence of a human cadaver. For example, a colleague, Sian Smith, whose PhD research focuses on 3-D digitisation methods for sharp-force traumas, studies stab wounds she has made in pigs. A number of her experiments have required her to transport pig parts to Mile End cemetery where they are buried and left to decompose before being photographed so that the images can be used to create 3-D models. Her work has potential applications in crime scene forensics, as well as for providing evidence in court, or even archaeological research on burial sites and other human remains.

I think this story is fascinating and can start many different conversations about how crime research is conducted and used. But, I have learned very quickly not all visitors feel the same way. For example, I made the mistake of telling this exact tale to a pair of visitors who were vegan. Concerned by the use of living things in order to meet the needs of humans, they were not very impressed by this particular research project. Perhaps, I should have guessed that they were not my target audience. Whilst I have met many visitors in the museum who have backgrounds in forensics or who like to preserve animal remains as a hobby, many more visitors haven’t ever seen anything like the Grant Museum’s collection outside the museum itself. I now make sure I check with visitors whether or not they want all the gory details before launching into my stories.

It is worth pointing out, however, that a reason that piglets are often used in research is because it is not uncommon for mothers to kill their young accidentally (by rolling over on them) leaving farmers or other pig owners with piglets that they cannot raise but can sell to labs instead. The vegan visitors that I spoke to felt that — as the pigs were not killed for the purpose of research — it seemed reasonable to use their bodies in this manner. Incidentally, both visitors were organ donors and intended to leave their own bodies to science. We spent a great deal more time discussing the use of animals in scientific, but non-medical, research which made for very interesting chat, if not exactly where I saw the conversation from the start.

Adventures in Eighteenth-century Papermaking

By Hannah L Wills, on 21 July 2017

By Hannah Wills

 

 

Earlier this summer, I gave a talk with some of the other engagers at our ‘Materials & Objects’ event at the UCL Art Museum. In preparing for the event, we were all challenged to think about the objects, materials, and physical ‘stuff’ that we work with on a daily basis. As I’ve written about before, my research focuses on the notebooks and diaries of a late eighteenth-century physician and natural philosopher, Charles Blagden (1748-1820), who served as secretary to the Royal Society. One of the things I’m interested in is how Blagden used his notebooks and diaries to keep track of his day-to-day activities, as well as the business of one of London’s major learned societies. Record keeping and note taking was a central part of Blagden’s life, and it’s owing to his impressive record keeping habit that there’s one material I handle in my research more than any other: eighteenth-century paper.

A selection of Blagden’s many notebooks, held at the Wellcome Library. (Image credit: Charles Blagden, L0068242 Lectures on chemistry, Wellcome Library, London. Wellcome Images, MSS 1219 - MSS1227. CC BY 4.0)

A selection of Blagden’s many notebooks, held at the Wellcome Library. (Image credit: Charles Blagden, L0068242 Lectures on chemistry, Wellcome Library, London. Wellcome Images, MSS 1219 – MSS1227. CC BY 4.0)

 

When I began preparing my talk for ‘Materials & Objects’, I started to think about how I might bring paper, a relatively mundane material, to life. My initial reading on the craft of papermaking told me that despite it being a 2000-year old process, making paper by hand has changed relatively little between then and now.[i] Out of curiosity, I decided to do an experiment, and to see if I could replicate some of the processes of eighteenth-century papermaking at home, in my kitchen.

The first stage in the papermaking process is to select the material from which the paper is going to be made. In the eighteenth century, this would typically have been cotton and linen rags. Towards the end of the century, shortages of rags, in part caused by an increased use of paper for printing, meant that makers began to experiment with other materials. In 1801, the very first book printed on recycled paper was published in London—that is, paper that had been printed on once before already.[ii]

Having selected the material, the next step is to break it down, making it into a pulp. When papermaking was first introduced in Europe in the twelfth century, rags were wetted, pressed into balls, and then left to ferment. After this, the rags were macerated in large water-powered stamping mills.[iii] In the eighteenth century, a beating engine, or a Hollander, was used to tear up the material, creating a wet pulp by circulating rags around a large tub with a cylinder fitted with cutting bars (see below).[iv] For my purposes, I found a kitchen blender worked well to break up scraps of used paper from my recycling bin at home, ready to make into new blank sheets.

(Left) Eighteenth-century illustration of a beating engine, from Diderot and d’Alembert’s Encyclopédie ou Dictionnaire raisonné des sciences, des arts et des métiers, vol. 5, Paris, 1767. (Right) A kitchen blender achieves roughly the same effect, breaking up old used paper soaked in water to create a pulp. (Image credits: Left “Papermaking. Plate VIII" The Encyclopedia of Diderot & d'Alembert Collaborative Translation Project. Translated by Abigail Wendler Bainbridge. Ann Arbor: Michigan Publishing, University of Michigan Library, 2013. CC BY-NC-ND 3.0. Right Hannah Wills)

(Left) Eighteenth-century illustration of a beating engine, from Diderot and d’Alembert’s Encyclopédie ou Dictionnaire raisonné des sciences, des arts et des métiers, vol. 5, Paris, 1767. (Right) A kitchen blender achieves roughly the same effect, breaking up old used paper soaked in water to create a pulp. (Image credits: Left “Papermaking. Plate VIII” The Encyclopedia of Diderot & d’Alembert Collaborative Translation Project. Translated by Abigail Wendler Bainbridge. Ann Arbor: Michigan Publishing, University of Michigan Library, 2013. CC BY-NC-ND 3.0. Right Hannah Wills)

 

Having been broken down, the liquid pulp mixture is then transferred to a container. In the eighteenth century, someone known as the ‘vatman’ would have stood over this container and dipped a mould into the solution at a near-perpendicular angle. Turning the mould face upwards in the solution before lifting it out horizontally, the vatman would have pulled out the mould to find an even covering of macerated fibres assembled across its surface. It is these fibres that would later form the finished sheet of paper.[v]

An eighteenth-century vatman dipping the mould into the vat. (Image credit: Detail “Papermaking. Plate X" The Encyclopedia of Diderot & d'Alembert Collaborative Translation Project. CC BY-NC-ND 3.0)

An eighteenth-century vatman dipping the mould into the vat. (Image credit: Detail “Papermaking. Plate X” The Encyclopedia of Diderot & d’Alembert Collaborative Translation Project. CC BY-NC-ND 3.0)

 

The moulds used in papermaking determine several features of the finished sheets of paper, including shape, texture and appearance. The type of mould first used in European papermaking was known as a ‘laid’ mould. This mould typically featured wires laced horizontally into vertical wooden ribs, meaning that when the mould was pulled out of the vat, the pulp would lie heavier on either size of the wooden ribs, giving vertical dark patches and the characteristic markings of ‘laid’ paper.[vi]

Screenshot 2017-07-20 11.16.04

A laid mould, with vertical wooden ribs and horizontal wires. A design and marker’s name are visible sewn into the mould, and will leave what is known as the ‘watermark’ on individual sheets of paper. (Image credit: Laid mold and deckle, Denmark – Robert C. Williams Paper Museum, CC0 1.0)

Screenshot 2017-07-20 15.10.07

Characteristic ‘link and chain’ pattern found on laid paper, left by the ribs and wires. This piece is a modern imitation of antique laid paper. (Image credit: Hannah Wills)

 

In mid-eighteenth century Britain, a new type of mould became widely used, developed by the Whatman papermakers based in Kent. This mould was known as a ‘wove’ mould, and had a much smoother surface, consisting of a fine brass screening that was woven like cloth. These moulds imparted a more uniform and fabric-like texture to individual sheets.[vii]

A wove mould, featuring two large watermark designs. Between the watermarks the smooth surface of the woven screening is visible, which leaves the paper with a fabric-like textured appearance, without the prominent horizontal and vertical lines of laid paper. (Image credit: Wove mould made by J. Brewer, London, England - Robert C. Williams Paper Museum, CC0 1.0)

A wove mould, featuring two large watermark designs. Between the watermarks the smooth surface of the woven screening is visible, which leaves the paper with a fabric-like textured appearance, without the prominent horizontal and vertical lines of laid paper. (Image credit: Wove mould made by J. Brewer, London, England – Robert C. Williams Paper Museum, CC0 1.0)

 

For my own papermaking, I chose to dip a piece of fine sieve-like material into my makeshift vat, aiming to replicate partially the texture and appearance of a ‘wove’ mould. The implement I chose for this was a small kitchen pan splatter guard, made up of fine mesh that when pulled out of the vat would hold a layer of fibres on its surface.

My chosen mould, a kitchen pan splatter guard, made from fine sieve-like material. (Image credit: Hannah Wills)

My chosen mould, a kitchen pan splatter guard, made from fine sieve-like material. (Image credit: Hannah Wills)

Dipping the mould into the vat and removing slowly, fibres are left on the surface of the mould. (Image credit: Hannah Wills)

Dipping the mould into the vat and removing slowly, fibres are left on the surface of the mould. (Image credit: Hannah Wills)

 

After the mould was pulled from the vat, the eighteenth-century vatman would pass it on to a coucher who would remove the sheet from the mould, before pressing it between felts to remove the water.[viii]

On the left, the vatman pulls the mould from the vat, before passing it to the coucher on the right hand side of the image, who removes the sheet from the mould before pressing a number of sheets at the same time in a large press. (Image credit: “Papermaking. Plate X" The Encyclopedia of Diderot & d'Alembert Collaborative Translation Project. CC BY-NC-ND 3.0)

On the left, the vatman pulls the mould from the vat, before passing it to the coucher on the right hand side of the image, who removes the sheet from the mould before pressing a number of sheets at the same time in a large press. (Image credit: “Papermaking. Plate X” The Encyclopedia of Diderot & d’Alembert Collaborative Translation Project. CC BY-NC-ND 3.0)

 

In order to remove my sheet of paper from the mould, I placed another sieve-material implement over the top of the fibres and pressed down with a sponge. With a tea towel placed underneath, this worked to remove much of the water without the need for a proper press. Pulling the top piece of sieve away from the bottom, I was left with a drier surface of fibres, which could be carefully lifted off the mould, and set aside to dry.

(Left) Pressing the sheet of fibres between two splatter guards. (Right) After the top guard is removed, the pressed sheet of paper is revealed. The circular shape is due to the shape of the mould. (Image credits: Both Hannah Wills)

(Left) Pressing the sheet of fibres between two splatter guards. (Right) After the top guard is removed, the pressed sheet of paper is revealed. The circular shape is due to the shape of the mould. (Image credits: Both Hannah Wills)

 

At this point in the eighteenth-century process, sheets were ‘sized’—dipped into a gelatinous substance made from animal hides that made the sheet stronger and water resistant.[ix] After my sheets had been left to one side to dry for a few hours, I decided to experiment by writing on them. I had not applied size to any of my sheets, so found that when I wrote on them the ink spread out, giving a sort of blotting paper effect.

(Left) After pressing, the sheets are dipped into large tub containing size. This step is important if the paper is to have a slightly waterproof quality that enables it to be written on without the ink spreading. (Right) Writing with ink on untreated sheets results in the ink spreading out across the paper. (Image credits: Left “Papermaking. Plate XI" The Encyclopedia of Diderot & d'Alembert Collaborative Translation Project. CC BY-NC-ND 3.0. Right Hannah Wills)

(Left) After pressing, the sheets are dipped into large tub containing size. This step is important if the paper is to have a slightly waterproof quality that enables it to be written on without the ink spreading. (Right) Writing with ink on untreated sheets results in the ink spreading out across the paper. (Image credits: Left “Papermaking. Plate XI” The Encyclopedia of Diderot & d’Alembert Collaborative Translation Project. CC BY-NC-ND 3.0. Right Hannah Wills)

 

After having size applied, sheets in an eighteenth-century papermill would have undergone a number of finishing stages. These included polishing and surfacing, processes that gave the paper a more uniform appearance.[x] With my own sheets of paper, I found passing a warm iron over the surface achieved a similar effect, removing some of the creases and wrinkles that had appeared during drying.

My finished sheet of paper, trimmed down into a small square ready for use. (Image credit: Hannah Wills)

My finished sheet of paper, trimmed down into a small square ready for use. (Image credit: Hannah Wills)

 

It is after these final finishing and drying processes that sheets of paper are ready to be packaged up and sent to the stationer’s.

Replicating historic crafts and processes is not new within the discipline of history. One of my favourite examples is a paper that was published in 1995, in which the historian Heinz Otto Sibum recreated the experiments of the scientist James Prescott Joule (1818-1889) in determining the mechanical equivalent of heat. By trying to recreate the experiment from Joule’s notes, Sibum revealed that Joule made frequent use of the bodily skills he developed while working in the brewing industry, such as the ability to measure temperatures remarkably accurately by using only his elbow.[xi] Often, attempting to replicate an experiment or craft will reveal just how much it relies upon implicit bodily skills, or tacit knowledge, the kinds of ‘knacks’ that are not written down but are simply known to those who perform an activity regularly.

In attempting to replicate the craft of eighteenth-century papermaking, I really only approximated the process, making substitutions for equipment and improvising a number of techniques, particularly when it came to removing my delicate wet sheets of paper from the mould. I think the biggest lesson I learnt was to have a greater appreciation of the material, and just how many skills and processes went into crafting each sheet of paper in the eighteenth century. Characteristics of individual sheets such as colour, texture and markings had not caught my attention in the archives previously, but I now find them fascinating for what they can reveal about the nature of the fibres used, the construction of the paper mould, and the processes followed by each individual papermaker.

 

 

References:

[i] Dard Hunter, Papermaking: The History and Technique of an Ancient Craft (New York: Dover, 1978), 178.

[ii] Ibid., 309-33.

[iii] Ibid., 153-55.

[iv] Theresa Fairbanks and Scott Wilcox, Papermaking and the Art of Watercolour in Eighteenth-Century Britain: Paul Sandby and the Whatman Paper Mills (New Haven: Yale Center for British Art in association with Yale University Press, 2006), 68.

[v] Hunter, Papermaking: The History and Technique of an Ancient Craft, 177.

[vi] Ibid., 114-23.

[vii] Ibid., 125-27. See also Fairbanks and Wilcox, Papermaking and the Art of Watercolour in Eighteenth-Century Britain: Paul Sandby and the Whatman Paper Mills.

[viii] Papermaking and the Art of Watercolour in Eighteenth-Century Britain: Paul Sandby and the Whatman Paper Mills, 71.

[ix] Hunter, Papermaking: The History and Technique of an Ancient Craft, 194.

[x] Ibid., 196-99.

[xi] Heinz Otto Sibum, “Reworking the Mechanical Value of Heat,” Studies in History and Philosophy of Science Part A 26, no. 1 (1995): 73-106.

 

Five years of research: a summary

By Stacy Hackner, on 3 July 2017

DSC_0745

by Stacy Hackner

A PhD often feels like an unrewarding process. There are setbacks, data failures, non-significant results, and a general lack of the small successes that (I hear) make general worklife pleasant: “I got that promotion!” “Everyone applauded my presentation!” “I moved to the desk near the window!” PhD life is one giant slog until the end, a nerve-wracking hours-long session where you’re grilled by the only people who know more about your field than you.

I survived.

Hopefully some of you have been following my research here, starting from astronauts and moving on to runners and foraging patterns. It all ties together, I promise. I recently gave a talk at the Engagers’ event “Materials & Objects” summarizing my research, which I can now tell you about in its full glory! I’m pleased to announce: I had significant findings.

The lowdown is that (as expected) there are differences in the shape of the tibia (shin bone) between nomads and farmers in Sudan. Why would this be? Well, if you’ve been following along, bones change shape in response to activity, particularly activities performed during adolescence. The major categories of tibial shape were those that indicated long-distance walking, doing activity in one place, and doing very little activity. Looking at the distribution, the majority of the nomadic males had the leg shape indicating long-distance walking, and some of the agricultural males had the long-distance shape and others had the staying-in-place shape. This makes sense considering the varying types of activity performed in an agricultural society, particularly one that also had herds to take care of: some individuals would be taking the herds up and down along the Nile to find grazing land while others stayed local, tending farms. While it’s unclear how often a nomadic group needs to move camp to be considered truly nomadic, in this case it seems like they were walking a lot – enough to compare their tibial shape to that of modern long-distance runners. These differences in food acquisition are culturally-adapted responses to differing environments: the nomads live in semi-arid grassland and can travel slowly over a large area to graze sheep and cattle, while the farmers are constrained to a narrow strip of fertile land along the Nile banks, limiting how many people can move around, and how often.

Perhaps the most important finding is the difference between males and females. In addition to looking at shape, I also conducted tests to show how strong each bone is regardless of shape, a result called polar second moment of inertia (and shortened to, unexpectedly, J). The males at each site had higher values for J – thus, stronger bones – than the females. However, the nomadic females had higher J values than some of the males at the agricultural sites! This is in spite of most females from both sites having the tibial shape indicating “not very much activity”. This shape may be the juvenile shape of the tibia, which females have retained into adulthood despite performing enough activity to give them higher strength values than male farmers. Similar results have actually been noted in studies examining different time periods – for instance, the Paleolithic to Neolithic – and found much more similarity between females than between males. Researchers often interpret this as evidence of changing male roles but female roles remaining the same, which strikes me as unlikely considering the time spans covered. I instead conclude that females build bone differently in adolescence, and perhaps there are subtleties in bone development that don’t reveal themselves as differences in shape. As females have lower rates of testosterone, which builds bone as well as muscle, they may have to work harder or longer than males to attain the same bone shape and strength. I’m using this to argue that the roles of women in archaeological societies – particularly nomadic ones – have been unexamined in light of biological evidence.

Of course, the best conclusion for a PhD is a call for more research, and mine is that we need to examine male and female adolescent athletes together to see when exactly shape change occurs. If we can pin down the amount of activity necessary for women to have bones as strong as those of their male peers, we can more accurately interpret the types of activities ancient people were performing without devaluing the work of women.

My examiners found all this enthralling, and I’m pleased to say I passed! The work of this woman is valued in the eyes of the academe.

Legacy in Conversation: Scrapbooks, Albums and Diaries in the 18th century

By Hannah L Wills, on 7 March 2017

By Hannah Wills

 

Hannah’s lunch hour talk, ‘Legacy in Conversation: Scrapbooks, Albums and Diaries in the 18th century’, will take place on Tuesday 14 March, 1-2pm, in the UCL Art Museum

 

 
How did people organise their notes and thoughts in the eighteenth century? This question is something that my research aims to get to grips with as I explore the diary and manuscript notebooks of Charles Blagden (1748-1820), an eighteenth-century natural philosopher, and secretary to the major scientific institution, the Royal Society. Whilst working on this strand of my research, which focuses on early modern information storage, retrieval and management, I’ve come across several synergies with the Art Museum’s current exhibition, entitled Legacy: Richard Cooper Jnr and the Artist’s Album.  

Blagden’s diary, vol 4, 3 Apr. 1802, Royal Society. Photo credit: Royal Society

Blagden’s diary, vol 4, 3 Apr. 1802, Royal Society. Photo credit: Royal Society

 

Legacy presents, for the first time, a number of albums produced by Richard Cooper Jnr, a little known eighteenth-century artist and innovative printmaker. As this exhibition shows, Cooper used his albums as repositories for sketches of artworks produced by other artists, as well as his own ideas and compositions. This use of the artist’s album closely mirrors another form of notebook popular in the eighteenth century, known as the ‘commonplace book’. These notebooks, whose origins can be traced back to the Renaissance, served as a kind of textual scrapbook, as a repository for favourite passages copied from other texts, as well as a note-taker’s own thoughts and anecdotes. Such notebooks enabled individuals to retrieve information, and were often used to help the note-taker pen their own prose compositions, including poems and essays.[i]

 

Album

One of Richard Cooper Jnr’s albums on display in the exhibition, UCL Art Museum. Photo credit: UCL Art Museum.

 

Next week, I’ll be giving a lunch hour talk at the Art Museum, exploring some of the connections between the albums of Richard Cooper Jnr and the diaries and commonplace book of Charles Blagden. Described as ‘visual diaries’, I’ll explore how Cooper’s albums are similar to Blagden’s own diary, as devices for storing important ideas, memories and information. Exploring both the text and images found within Blagden’s commonplace book, I’ll take at look at how these notebooks functioned as a kind of textual analogue to the artist’s album, and how albums, diaries and notebooks contribute to notions of ‘legacy’.

 

 

[i] Mark Towsey, Reading the Scottish Enlightenment: Books and Their Readers in Provincial Scotland, 1750-1820 (Leiden and Boston: Brill, 2010), 182.

The Student Engager Project featured on the LSE Impact Blog

By Kevin Guyan, on 12 August 2016

The Student Engager project featured on the LSE Impact Blog, an online hub for those researching and working at universities who wish to maximise the impact of academic work.  In the article, the project coordinator Kevin Guyan discusses the potential benefits of the public engagement project for training the next generation of researchers in ways to communicate research with non-academic audiences.

 

LSE Impact Blog

To read the full article visit the LSE Impact Blog.

 

 

Engaging Conversations: What do a shift in the Grant Museum and the diaries of Charles Blagden have in common?

By Kevin Guyan, on 28 June 2016

By Hannah Wills

 

 

I’m thrilled to have recently joined the team of student engagers at UCL, and to have had my very first shift in the Grant Museum this month. As a historian of science, working on Charles Blagden (1748-1820), Royal Society secretary to the famous naturalist and patron of science Joseph Banks, I instantly found connections between the museum’s natural history specimens and my own subject interests. However, during my very first shift, I discovered another more personal link between my own PhD research and my experiences as a student engager.

Blagden

Sir Charles Blagden, photo credit: Wikipedia.

My work on Charles Blagden involves reading and transcribing some of his extensive diary, which he kept for most of his life, now looked after in the archives of the Royal Society. In his diary, Blagden recorded a daily inventory of his activities: where he went, whom he saw, and whom he dined with (Blagden was never one to miss out on a gastronomic get-together!).

Within this inventory-style diary are often records of the actual conversations had around the breakfast, lunch or dinner table. A friend of naturalists, botanists and all manner of scientific fellows of the Royal Society, Blagden frequently had conversations about exotic looking artefacts from fascinating and far away places, collected during the latest voyages of exploration. What’s more, many of these conversations took place with the objects of discussion right before the eyes of the company. During my first shift as a student engager, it struck me how chatting to visitors about strange and exotic creatures—ones which we had right before our eyes—seemed to echo what Blagden got up to on a nearly daily basis, over 200 years ago.

Something I’ve particularly noticed in Blagden’s dinner-table conversations is the use of comparison, and a fascination with the exotic. When in conversation about animal husbandry in China, Blagden was thrilled to learn how buffaloes, instead of horses, were used to plough fields—a very strange sight indeed! When talking about different species of nut, collected by naturalists on various voyages, Blagden and his friends compared them in size, shape and even taste, to those they had seen before, allowing them to make sense of new and exciting flora and fauna in relation to those they already understood.

Cookier Cutter Shark Jaw

Cookie Cutter Shark Jaw, photo credit: Grant Museum of Zoology (V415).

Chatting to visitors in front of exotic looking specimens in the Grant Museum, I noticed just how often we made use of comparisons between a strange looking skeleton and something we both knew well. Sometimes this comparison was suggested by the name of the creature. Standing in front of the cookiecutter shark jaw with one visitor, we both shuddered with a kind of macabre delight at how this animal uses its cookie-cutter like teeth to cut round lumps of flesh out of its victims, just as a real cookie-cutter is used to cut shapes out of a piece of dough.

There is definitely a thrill to seeing something new and exotic, something from far away, or something more mundane that you’ve simply never noticed before. As a student engager, I’m really looking forward to my next shifts in the Grant, Petrie and Art museums—not least for the opportunities I’ll get to see and learn about something completely new, and to chat about it with visitors, just as Blagden and his friends discussed the latest curiosities that made their way to London in the late eighteenth century.

 

Stress: Using Oral History Interviews

By tcrnfmw, on 11 November 2015

Profileby Felicity Winkley 

This post is associated with our exhibit Stress: Approaches to the First World War, open October 12-November 20.

 

 

A visitor to Stress last week commented that the objects on display weren’t what she expected, that she had anticipated they would show much more directly the obvious effects, or stresses, of the First World War on men, women and children.

I wasn’t surprised by this response. We knew when we curated Stress that the interpretation of the objects was more convoluted than most traditional museum displays – the object labels are longer than best practice advises, the visual links between the cases difficult for the visitor to immediately grasp.

Part of this is owed to the fact that the objects have been chosen from the UCL collections – geology, pathology and science specimens among others – rather than from a military history assemblage. In equal measure, it is also because the objects have been chosen not only because of their relevance to the exhibition, but also according to the individual research interests of the curators.

One element of the exhibition breaks this mould however – the audio installation which plays two oral history interviews from the archives of the National Army Museum, recollections of two individuals who served in the First World War. For me, this part of the exhibition provides the visitor with the most direct link to the conflict – an immediate and very powerful ‘place-setting’ via the experiences being narrated, quite apart from the objects on display.

Although the audio is on a permanent loop, no matter at what stage you join in the story you are transported: with Adelaide Marian Davies, who served with the Women’s Army Aux Corps in France, you can picture the scene as she describes the dances held for troops at the Front, where it was forbidden for her rank to dance with the officers; with L/Cpl Billy Meade, you might join him at the Dardanelles, Ypres or later at the prisoner of war camp where he tasted Schnapps for the first time.

The Oral History Listening Post at Stress

The Oral History Listening Post at Stress

The resonance of these anecdotes illustrates just why oral history interviews are important, and why they are such a useful element to incorporate in exhibitions, or indeed many kinds of research. As opposed to much of the written historical record, oral histories are collected directly from the source and feel so much more authentic for it. For the purposes of my PhD, I used a ‘go-along’ interview technique, which involved talking to respondents whilst walking, in order to glean accurate insight to their experience of being in that environment. More recently, I volunteered as an oral history interviewer for the London Bubble’s After Hiroshima project which explores the responses of Londoners to the dropping of the first atomic bomb on 6 August 1945, both in the immediate aftermath and throughout the peace movement of the 1950s and 60s.

Oral histories lend themselves to many situations, not only to provide a means for gathering unique, illuminating and personal records and reflections, but also – in the process of their collection – to involve a wider community in research and offer an opportunity for participation in history and heritage in practice. We were thrilled to be joined on the Stress opening night by the family of Billy Meade, including his daughter (now 84), who had never before heard his recording.