Curtis, Otis Freeman, 1888-1949. An introduction to plant physiology / by Otis F. Curtis and Daniel G. Clark. - First edition - xiii, 752 pages : illustrations ; 24 cm. - McGraw-Hill publications in the botanical sciences . Includes bibliographies. LCCN: 50004321 Nat. Bib. No.: GB50-6002 Subjects--Topical Terms: Plant physiology. LC Class. No.: QK861 / .C8 Dewey Class. No.: 581.1