Sign Up for a Free Account

This is an image preview.
Start a Free Account
to view the full image.

  • Nearly 3,000 illustrations, including video clips of neurologic disorders.

  • Every article is reviewed by our esteemed Editorial Board for accuracy and currency.

  • Full spectrum of neurology in 1,200 comprehensive articles.

  • Listen to MedLink on the go with Audio versions of each article.

British physician and physiologist John S Haldane FRS (1860-1936) in 1920

Haldane was famous for his intrepid self-experimentation, which led to many important discoveries about the nature of gases and their effect on the human body. Half-length photograph, seated at desk, full face. Interior view of his office at his residence on Linton Road, Oxford. (Source: U.S. Library of Medicine, Bethesda, Maryland. Public domain.)