A source book of biological nature-study
By: by Elliot Rowland Downing ...
Series: The University of Chicago nature-study series, ed. by E.R. Downing; University of Chicago nature-study series
Publisher: The University of Chicago press
Published: 1919
Place of publication: Chicago, Ill
Language: eng
Number of pages: 503
Subjects: Natural history -- Study and teaching.; Nature study.