150.72 W Whipple, Guy Montrose, 1876- ...Manual of mental and physical test a book of directions compliled with special reference to the experimental study of school ohildren in the laboratory or classroom, by Guy Montrose Whipple... [2d rev. and enl. ed.] Baltimore, Warwick & York inc., 1915 2 v. illus., tables, diagrs. 22 cm