Photographic Facts and Formulas by E.J. Wall and Franklin I. Jordan. Revised edition.

American Photographic Publishing Co., 1947. 364 pages. Fine with very good protected dust jacket with a bit of wear at extremities.  Formulary covers numerous photographic chemical processes used in analog photography, e.g. gelatin silver, cyanotype, printing-out papers, carbon processes, gum-bichromate printing, oil, and bromoil, et al., as well as such topics as reduction, intensification, photomechanical processes, stereographic photography, printing papers, lantern slides, and more.  See photo of table of contents for details.