1. Notes on the employment of urethan and of amyl hydrate in insomnia Author(s): Griffith, J. P. Crozer (John Price Crozer), 1856-1941, authorKirby, Ellwood R. (Ellwood Robert), author Publication: [Philadelphia?] : [publisher not identified], [1888?] Subject(s): Sleep Initiation and Maintenance Disorders -- drug therapyUrethane -- therapeutic usePentanols -- therapeutic use