Portrait of John Q. Quekett. He is sitting in a chair with right hand on a table with a microscope. Quekett was a microscopist, Member of the Royal College of Surgeons, and Adjunct Conservator of the Hunterian Museum.
Picture of Joseph Lister, who made classic studies on the process of inflammation, and showed the blood could be kept indefinitely free from putrefaction.
Portrait of Michel Eugene Chevreul, a chemist, who investigated chemical interactions involved in diabetes. "Triangle Volume 7 Number 1 1965" at head of sheet.