Selected bibliography
Biology • Principles of paleobotany (1960) • Textbook of paleobotany (1939) • A critical review of the upper Pennsylvanian floras of eastern United States with notes on the Mazon Creek flora of Illinois (1969) Photography • Stereo views, a history of stereographs in America and their collection (1964) • A check list of Maine photographers who issued stereographs (1967) • An Album of stereographs : or, Our country victorious and now a happy home : from the collections of William Culp Darrah and Richard Russack (1977) • The world of stereographs (1977) • Cartes de visite in nin[e]teenth century photography (1981) ==References==