A Fortune Given Away
   Dr. Babcock refused to patent his test for butterfat. Illustrated with historical photographs, this section of "It Happened Here" tells the story of the Babcock test, and describes the professor's personality.
   http://www.library.wisc.edu/etext/WIReader/WER0659-1.html

Babcock, Stephen Moulton
   Short biographical article on the American chemist who devised a test for butterfat content.
   http://www.bartleby.com/65/ba/Babcock.html

Dr. Stephen Babcock and the Original Butterfat Tester
   Photograph.
   http://www.library.upenn.edu/etext/smith/b/babcock1.html

Stephen Moulton Babcock
   Biographical profile of the biochemist for whom the Babcock test is named.
   http://www.whonamedit.com/doctor.cfm/366.html