Wood, Hugh B. and Impecoven, Howard. Sources of free and inexpensive teaching materials in science; sources of free and inexpensive teaching materials in health and physical education; sources for free and inexpensive teaching materials in the social studies; home making; fine and industrial arts and crafts; mathematics; physical education; social studies; general courses of study and guides; Kienzle, Kenneth. A survey of current electricity activities for secondary physics classes with a minimum use of expensive instruments; Haberly, A. A. sound in the life of man; A bibliography of bibliographies of instructional aids to learning; Weigle, R. M. guidance materials for high school students. Eugene, Oregon: School of Education, University of Oregon, 1949–51. 6 p., 9 p., 18 p., 2 p., 5 p., 3 p., 4 p., 7 p., 7 p., 8 p., 22 p., 19 p., 43 p., 26 p. $0.15, $0.20, $0.30, and last four titles $0.30, $0.25, $0.50, and $0.30

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