I 028.5 Will Ch Williams, Alice Marietta, 1901- Children's choices in Science books; a study to discover some elements of a book in the field of science that appeal to children, by Alice Marietta Williams, PH. D. New York, Teachers college, columbia university, 1939. xiv p., 11., 163 p. 23 en. (Half-title: Child development monographs Monograph no. 27) Issued also as thesis (PH. D.) Columbia university. Bibliography: p. 158-163