Collins, Mary. Experimental psychology/ by Mary Collins ..and James Drever ; wit h 27 diagrams. - 5th ed. enl. - London : Methuen and Co. Ltd., [1937] - viii, 320 p. : illus. diagrs ; 19 cm. Subjects--Topical Terms: Psychology.--------Psychophsiology-------- Dewey Class. No.: 150.72 COL