The Sanford Louis Palay Papers include the bulk of Palay's professional correspondence from his days as a medical student until after his retirement. The collection includes class notes, research notes on brain anatomy and physiology and on the golgi apparatus, a large number of electron micrographs of brain structures, and editorial files from the Journal of Comparative Neurology (1980-1997). This is a large and comprehensive collection of Palay's professional papers.The correspondence and photographs are especially rich and are likely to be the sections of this collection most interesting to researchers. Palay's records from the Journal of Comparative Neurology, which document the publication process for papers, constitute nearly half of the collection.