1. Staining and permanent preservation of histological elements isolated by means of caustic potash (KOH) or nitric acid (HNO₃) Author(s): Gage, Simon Henry, 1851-1944, authorGage, Susanna Phelps, author Publication: [Buffalo?] : [publisher not identified], [1889?] Subject(s): Histocytological Preparation TechniquesLyeNitric Acid