TY - BOOK AU - Curtis,Francis Day TI - A digest of investigations in the teaching of science PY - 1971/// CY - New York PB - Teachers College Press KW - Science KW - Study and teaching N1 - Vol. 2 has title: Second digest of investigations in the teaching of science; v. 3 has title: Third digest; Vol. 1 is limited to research investigations in the field of elementary and secondary education published prior to 1925; v. 2 covers research investigations chiefly from 1925 through 1930, including studies in the field of higher education, the list having been voted upon by members of the National Association for Research in Science Teaching; v. 3 covers research investigations chiefly from 1931 through 1937 and its organization follows the general plan of v. 2; Vol. 3 published without series note; Bibliography at end of some of the studies ER -