Tag Archives: Mollusc

This month we learn that Erin, one of our Lyell project volunteers, has had her eyes opened to the present-day natural world – thanks to inspiration from our Sir Charles Lyell Collection.

We have all caught the Lyell / Geology bug here at the Sir Charles Lyell Collection Project HQ. Each of us has developed a preoccupation with spotting and identifying pebbles, fossils, gneiss, and schist and so on. Our work and personal libraries groaning with the additional weight of multiple biographies of Lyell, and an almost absurd array of spotters guides to rocks, minerals and fossils. Even our twitter feeds are increasingly populated with evidence of geological time lines (mostly pebbles with veins). No return from a trip to the beach complete without a pocketful of geological specimens; pebbles of grey granite, ovoid pebbles of slate with quartz vein running through it, fragments of whitish chert, and things we used to know, simply, as shells.

A digital photographic image showing a handwritten, in pencil and in ink, list of shells which were sent to Bedford Place, dated 5 February 1840. from Sir Charles Lyell’s Notebook, No. 80, 5 February – 25 June, 1840, Ref: Coll-203/A1/80)

A list of shells sent to Bedford Place, dated 5 February 1840, from Sir Charles Lyell’s Notebook, No. 80, 5 February 1840 – 25 June, 1840, (Ref: Coll-203/A1/80)

On my desk, as I type, are an assortment of granite, quartzite, and possibly metamorphic mud – a recent haul from Point beach on the Isle of Lismore. It is one of the great privileges of working so intimately with historical collections: we are repeatedly offered a unique opportunity to develop knowledge and interest in a person, subject, or era that, most likely, would have eluded us had we chosen a different line of work. Earlier this week I read, in the New York Times, Dennis Overbye’s review of the renovated hall of gems and minerals at the American Museum of Natural History. He suggests that ‘Geology Is Our Destiny’.1 For all of us working together to interpret, catalogue and make accessible the Sir Charles Lyell Collection, it would certainly seem so.

Project volunteer, Erin, has developed only a little infatuation with molluscs (to the extent that her new found knowledge required the creation of its very own data-set – Erin is a qualified archivist after all). In working with the Lyell notebooks, Erin has begun to see the world through Lyell’s nineteenth-century geological wisdom. The present-day natural world has opened up to Erin in a way she had never imagined possible. Here, Erin tells us more about her work transcribing Lyell’s notebook indexes and how it has fuelled her growing obsession.

“Transcribing Sir Charles Lyell’s scientific notebook indexes has been a sometimes ruffling but always captivating journey. The one thing I never expected was that like Lyell, I found myself becoming fascinated with molluscs. The Mollusca phylum is:

“one of the most diverse groups of animals on the planet, with at least 50,000 living species (and more likely around 200,000) [and it] includes such familiar organisms as snails, octopuses, squid, clams, scallops, oysters, and chitons”.2

Lyell often took note of the different genera and species he found during his travels. In notebook 80, for instance, I found a list of shells belonging to various molluscs which Lyell had identified and had sent to his home in London.

I felt like both an amateur detective and biologist as I hunted for these bivalves and gastropods on the World Register of Marine Species and MolluscaBase (a global species database, covering all marine, freshwater and terrestrial molluscs, both recent and fossil). As I transcribed, I felt compelled to document them and my new found knowledge about them in an Excel data-set. Some of them proved very elusive and some others are still a mystery. The excitement I felt each time I was able to find a mollusc Lyell had listed was extremely gratifying, particularly when the name he had recorded had fallen out of accepted or general use.

What I have loved most about transcribing Lyell’s notebook indexes is how much I am able to learn from only one index entry; nineteen molluscs in a single page that I had the pleasure of trying to find and learn about! This is what I feel is the most rewarding part of being an archivist. Through this amazing collection we are given the opportunity to explore the life and times of Sir Charles Lyell while presenting his knowledge, research, ideas and wondrous curiosity to a wider audience.

Now, each time I go to Yellowcraigs or North Berwick for a wild swim, I can’t help but stop and examine the rocks, the shells, the crab skeletons, the little pools full of marine life and of course the molluscs. I never would have stopped to explore in this way had I not first discovered so much through the eyes of Sir Charles Lyell.”

We hope you enjoyed reading about how the Sir Charles Lyell Collection has inspired our project volunteer, Erin, to observe and learn about her natural surroundings with new-found enthusiasm.  Erin’s story is just one example of the power of historical collections to enable, support and enhance the acquisition of new knowledge, learning and understanding. We would love to know how you might use the collection to aid learning, teaching and research. Please share your thoughts in the comments.

Thanks to Dr. Gillian McCay, assistant curator at the Cockburn Geological Museum, for her help in identifying the Point beach pebbles. Look out for our next blog post, (coming very soon), when we will be taking a bit of a deep-dive into Lyell’s indexes and hearing from another of our project volunteers, Michael. Thanks for reading!

Elaine MacGillivray, Senior Lyell Archivist
Erin McRae, Lyell Project Volunteer

Sources and further information:
1. Dennis Overbye, ‘Why Geology Is Our Destiny’, The New York Times, 22 June 2021 (https://www.nytimes.com/2021/06/22/science/natural-history-museum-gems-minerals.html), [accessed 25 June 2021].
2. Paul Bunje, ‘Lophotrochozoa: The Mollusca: Sea slugs, squid, snails, and scallops,’ Proceedings of the Royal Society B274(1624):2413-2419 (https://ucmp.berkeley.edu/taxa/inverts/mollusca/mollusca.php), [accessed 25 June 2021] .
World Register of Marine Species
MulluscaBase

In Lyell’s Own Words

This month we hear from Lyell Project Archivist Elise Ramsay and Project Volunteer Erin McRae. Elise and Erin each reflect on their recent progress transcribing the Sir Charles Lyell notebooks using ground-breaking AI and machine learning, and their work together to develop this incredible AI tool for further use with the Lyell collections. 

Elise Ramsay, Project Archivist, holding an open scientific notebook and smiling

Elise Ramsay
Lyell Project Archivist

For me, the written word is the most captivating and characterful element of the Sir Charles Lyell collections. When reading Lyell’s own words on the page in graphite and ink, I can tell when he is writing from a desk, or in the field. In decoding his idiosyncrasies, I have come to understand a bit of the man himself. Understanding Lyell’s handwriting is the key to opening up this internationally significant collection. But it is also the first barrier. Lyell’s handwriting is of his time; often liberally abbreviated, topic specific, and faded. Complete transcription of the collection is paramount to accessibility, and recently, we have made some exciting progress towards this goal.

In early March 2021, the Charles Lyell Project team took part in hosting the EDITOR Transcription virtual workshop. In preparation for the workshop, two digitised notebooks from the Lyell collections (MSVII and Notebook No 4) were selected to be trialled with the Transkribus platform. Over 8 weeks, EDITOR project interns Evie Salter and Nicky Monroe transcribed these notebooks word for word. With this data, an algorithmic model of Lyell’s handwriting was created, effectively teaching Transkribus to recognise Lyell’s words on the page, and to decipher them automatically. This innovative work by the EDITOR Team, has revolutionised our systems and methods of cataloguing. Already we can see this balance of machine learning and human input has introduced new efficiency (and enjoyment!) to the task of transcription.

To build on this momentum, we were delighted to offer a remote volunteer opportunity aimed at trialling the newly created Transkribus model and testing the many features Transkribus offers. In this capacity, Erin McRae joined us in March, contributing to key cataloguing efforts and scoping the features of Transkribus for further use with the collections. Erin is a recent graduate from the MSc in History programme at the University of Edinburgh and holds an MA in Archives and Records Management from University College Dublin in Ireland. In only two months, Erin has produced tremendous material, and we are indebted to her. Here, Erin reflects on her first impressions of the Sir Charles Lyell collections and using Transkribus:

Profile Picture, Erin McRae, Volunteer

Erin MacRae
Lyell Project Volunteer

When I think of Sir Charles Lyell, I see a man in constant motion and possessing a thirst for knowledge that knew no boundaries. I can picture him observing the volatile Mount Etna, or immersed in the identification of mollusc species, or exploring geologic formations and petrified fossils millions of years old. I imagine him pausing to scribble down his observations in notebooks in his own inimitable style (a combination of English, French, Italian and Latin), so he wouldn’t miss any detail.

The detail of the collection is of untold value to researchers and presents interesting challenges as we describe the collection. In addressing these challenges, the Transkribus platform is an invaluable tool.  

Transkribus  is “a comprehensive platform for the digitisation, AI-powered text recognition, transcription and searching of historical documents – from any place, any time, and in any language.”1 Using the algorithmic handwriting model developed on the EDITOR project, we were able to upload more raw material from the Lyell collections to the Transkribus platform. In my recent work with Sir Charles Lyell’s notebooks, I found that Transkribus was able to decipher Latin species names with which I was unfamiliar. This saved me a significant amount of time and gave me the ability to transcribe much faster.  An example of this occurred when Transkribus identified “Fissurellagraeca”.2 A species of mollusc, this name has since been replaced by the accepted name “Diodora graeca3 . It is remarkable that it was correctly interpreted by the software in the first place. 

A screenshot of the Transkribus platform. On the left is a digitised image of a page of Charles Lyell's notebook 65. The handwriting is in ink, and an untidy scrawl. On the right is typed words, corresponding to each line in the image. The words are a word for word transcription.

An example of transcription output from the Transkribus platform.
From Sir Charles Lyell Notebook, No. 65
(Ref: Coll-203/A1/65) – (with apologies for the poor quality image).

 

 

 

 

 

 

 

 

 

The transcriptions that Transkribus produces require minor to moderate spellcheck amendments, primarily where vowels are mistaken. There were some instances of errors in phrases, names, and once a whole line of text. In this case I transcribed this line myself which I had done previously with indexes in two other notebooks. These issues are minor and they  do not detract from the immense amount of time I saved  using Transkribus compared to transcribing without the aid of the algorithmic model. In particular, we were all struck by the accuracy of the model in recognising and deciphering antiquated species names. This was invaluable and changes the role of the transcriber.

The overall benefit of the Transkribus software is that it is helping us to develop a much more comprehensive approach to describing and interpreting the Sir Charles Lyell Collections. To a much greater degree than previously possible, we can document and unlock the life and travels of this principal figure in the evolution of the discipline of geology.  

Elise Ramsay, Lyell Project Archivist
Erin McRae, Lyell Project Volunteer 

Sources and further information:
1.
Transkribus.” Read Coop. Accessed April 19, 2021.
2. “Fissurella graeca (Linnaeus, 1758).WORMS: World Register of Marine Species. Accessed April 19, 2021.
3. Ibid.

You can learn more about our revelatory transcription work on the Sir Charles Lyell Collections, part of the EDITOR project, on YouTube:
Editor Transcription Workshop: Day 1/Session 3 – Video 3 of 10 – YouTube
Editor Transcription Workshop: Day 2 /Session 3 – Video 6 of 10 – YouTube