Armstrong, H. E. 1848-1937 H. E. Armstrong and the teaching of science 1880-1930 / edited with an introduction by W. H. Brock - London : Cambridge University Press, 1973 - x, 161 p. ; 19 cm. Includes index ISBN: 0521086795 : ? 4.00 Subjects--Topical Terms: Science--Philosophy Dewey Class. No.: 507