Richards, Horace Clark, 1868-1945.
Radium and its rays, 1914.
This is the text of the lecture Richards presented in Houston Hall at the University of Pennsylvania.
Horace Clark Richards was a physicist, and was elected to the American Philosophical Society in 1907.
University of Pennsylvania
Physics
Radium.
Lectures lcgft aat
AIP-ICOS
American Philosophical Society. Library. 105 South Fifth Street, Philadelphia, PA 19106, USA