Professor Ralph Frerichs of UCLA has created this masterful site dedicated to exploring the life and work of John Snow, an individual who is perhaps best known for determining how cholera is transmitted. Along with offering a biography of Dr. Snow, the full-text version of his seminal work, "On the Mode of Communication of Cholera" is included. Best of all, Professor Frerichs has scanned the...

The National Library of Medicine presents the Fred L. Soper Papers, a new Profiles in Science feature. The collection includes a selection of digitized documents available for use by educators and researchers. First-time visitors may wish to begin with the online exhibit -- a well-presented introduction to the scientific career and professional life of Soper, an American epidemiologist and public...