A collection of about 106 mounted albumen prints created by George W. Rafter, a practitioner of high-powered photomicrography. In addition are a report by Rafter documenting his work and a modern reprint of an article he wrote for the Society of Microscopists. Plates 1-88 are described by a detailed inventory in folder 1; the descriptions here are abbreviated. Items 89-106 are smaller format prints, solely described from notes on the items themselves. Dated materials are from 1888.