Abstract
IT was (Ji surprise to read in Dr. Cosslett's preface that a course of lectures in electron optics has seen given in the honours physics course at Oxford since 1942; yet the surprise was unwarranted because the War has forced electron optical devices out of the laboratory and into industry and the Services. Dr. Cosslett has aimed at providing a text-book “intermediate in length and level of treatment”, and hopes that it will be of use to students and research workers; presumably those using electronic devices rather than their designers. Introduction to Electron Optics The Production, Propagation and Focusing of Electron Beams. By Dr. V. E. Cosslett. Pp. xii + 272 + 8 plates. (Oxford: Clarendon Press; London: Oxford University Press, 1946.) 25s. net.
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