Half-length photographic portrait of William Crookes seated next to a table containing a scientific instrument. Taken at age 18 when Crookes was August Wilhelm von Hofmann's assistant.

Plate from the biography of Sir…

Notebook containing dyed yarn samples and corresponding handwritten dye recipes.

The first of two highly legible British dyer's account journals. The journal lists recipes and the costs for materials used in the process of dyeing many kinds of cloth, "gum china blue," "sumac," "peachwood," etc.…

The first of two highly legible British dyer's account journals. The journal lists recipes and the costs for materials used in the process of dyeing many kinds of cloth, "gum china blue," "sumac," "peachwood," etc.…

This warped and worn nineteenth-century Italian manuscript appears to be a working manual and color inventory of a wool dyer in mid-nineteenth-century Italy. The handwritten entries are dated between 1856 and 1866,…

Color plate depicts the decomposition structure of solar rays. Light passes through a prism illustrating the color composition of solar rays.

This plate comes from the Chemical Atlas; or, The Chemistry of Familiar…

Half-length photographic portrait of William Crookes taken in 1856, when sitter was 24 years old.

Plate from the biography of Sir William Crookes, a British chemist and physicist known for his work on spectroscopy. He…

Early examples of paper chromatography from German chemist Friedlieb Ferdinand Runge, who is considered to be the originator of the analytic technique. Runge investigated the color reactions of various chemical…