in Oxford Dictionary of National Biography
September 2004; p ublished online September 2004 .
Reference Entry. Subjects: Astronomy and Astrophysics; Botany. 3 words.
See Pigott, Nathaniel
in American National Biography Online
January 1999; p ublished online February 2000 .
Reference Entry. Subjects: Physics; Geology and the Lithosphere; Botany. 1260 words.
Riddell, John Leonard (20 February 1807–07 October 1865), botanist, microscopist, and geologist, was born in Leyden, Massachusetts, the son of John Riddell and Lephe Gates. Riddell’s...