X-ray projection microscopy and transmission electron microscopy

Abstract Before joining Ellis Cosslett's EM Group in October 1949, coming from Canada, I had chosen to work on the X-ray projection microscope. The new instrument was constructe, tested and improved and a Ph.D. degree awarded in June 1952. Many visitors came to see the instrument and the results. The universal comment was “How do you get such beautiful images from such a heap of junk?” The High Voltage Transmission Electron Microscope was a Cavendish project of the 1960s with K.C.A. Smith supervising. The High Resolution Electron Microscope of the 1970s was a joint Engineering and Physics Departments project with Cosslett as the Physics Principal Investigator, until his retirement in 1975, and Nixon as the Engineering Principal Investigator throughout.