The Denny-Brown collection: a research and teaching resource.

A large collection of potentially valuable materials compiled by the late Dr Derek Denny-Brown is described. This consists of 2,200 films of monkeys with central nervous system lesions, associated behavior and neuropathological descriptions, and histological slides. There are also 500 films of patients with a wide assortment of diseases, including some not currently seen, like postencephalitic parkinsonism. This description will enable contemporary researchers to utilize this collection in their research and teaching programs.