A great variety of optical instruments has been developed for use in biology. The microscope and its many special types are part of them. In this article, a survey is given of the history, development, current status, and future outlook of general microscopy, microspectroscopy, interference microscopy, and electron and x-ray microscopy.
Jurgen R. Meyer-Arendt, "Optical Instrumentation for the Biologist: Microscopy," Appl. Opt. 4, 1-9 (1965)