01281cam a22002891 4500 hew64000012 DLC 20260227111513.0 771205s1963 xx 000 0 eng c hew64000012 (OCoLC)3464987 U.S.Dept. of Health, Education and Welfare. Library DNIE OCoLC DLC premarc L111 .A6 1963, no. 30 Piltz, Albert, 1915- Science equipment and materials : science kits, by Albert Piltz and William J. Gruver. [Washington] U.S.Dept. of Health, Education, and Welfare, Office of Education ; [for sale by the Superintendent of Documents, U.S. Govt. Print. Off., 1963] v, 26 p. : tables. United States. Office of Education. Bulletin 1963, no. 30. "OE-29049." Copies 1 and 3 with: Education in Czechoslovakia / Nellie Apanasewicz. Washington : U.S.Dept. of Health, Education, and Welfare, Office of Education, 1963. Bound together subsequent to publication. DLC Bibliography : p.26. Science Study and teaching. Teaching Aids and devices. Gruver, William John, 1914- joint author. Science kits. 34461 34461