Today is Ada Lovelace day when we celebrate women in science, technology, engineering and maths.
Our Librarian, Helen Williamson, is here to tell us about her work with our community partners creating beautiful cyanotypes inspired by Anna Atkins.
‘We have written about Anna Atkins before on Ada Lovelace day but it’s a great opportunity to talk about her again, the beautiful book we hold in the library and the wonderful process of making cyanotypes.
The cyanotype was invented by Sir John Herschel in 1842. He was a family friend of Atkins and a regular visitor at the family home in Kent. Atkins was a keen artist, as well as an enthusiastic botanist, and recognised that Herschel’s new invention, which required only a few chemicals, water and sunlight, offered an opportunity to approach botanical illustration in a different way.
In 1843, she started work producing the cyanotypes that would make up Photographs of British Algae: Cyanotype Impressions. It is considered to be the first ever photographically illustrated book and we are very lucky to have a copy in our library which was previously owned by the museum’s founder, Frederick Horniman.
To make a cyanotype, objects are placed on a sheet of chemically treated paper and then exposed to sunlight. The length of exposure depends upon how bright a day it is. Once exposed, the paper is washed in water and dried, with the colour fully developing when dry.
The process of creating cyanotypes is almost unchanged since Anna Atkins was making her book, and it creates remarkably stable prints. Most early photographic prints have deteriorated completely by now or need to be kept in strict, environmentally-controlled storage. Cyanotypes, on the other hand, have endured amazingly well. The colours in our copy of her Photographs of British Algae are beautifully vivid and the paper is robust enough for handling and display.
Over the summer the library and the learning team ran an engagement project with a number of our community partners who were challenged to make cyanotypes of their own, inspired by Anna Atkins and using the botanical world around them. This is some of the beautiful work they produced.
A book of all of the cyanotypes made during this project is available to view in the library, alongside other material about Anna Atkins.