00508cam a22001691 4500 502.82 COS L-11 P-19. Cosslett, V. E. 38901 The electron microscope. V. E.Cosslett [London] Sigma [1947] viii, 128 p. illus. 19 cm. Sigma introductions to science, 0 0 0 502_820000000000000_COS Electron microscopes. 38902 Electron optics. 38903 MCE 379 ddc BK 543519 543519 0 0 ddc 0 0 MCE MCE 2014-03-26 0 502.82 COS MCE-40738 2014-03-26 2014-03-26 BK