UK 2010 Dorothy Hodgkin & Protein Crystallography

This stamp shows Dorothy Hodgkin, and is part of a 10-stamp issue celebrating 350 Years of the Royal Society. Born Dorothy Mary Crowfoot, she married Thomas L. Hodgkin in 1937, hence the name on the stamp. She contributed to the development of protein crystallography that was to become so important in the discovery of the molecular structure of the DNA; her 3 greatest accomplishments in chemistry were the determination of the strucutre of penicillin (1945), vitamin B12 (1957), and insulin which she worked on from 1934 to 1972. Dorothy is also featured on a 1996 20p stamp from a set of "20th Century Women of Achievement".