Townsend, Chas. F. Chemistry for Photographers; Illustrated. New York: Spon & Chamberlain, 1897. First Edition.
Red cloth with bright gilt titles, 5 x 7 1/2 inches, 158 pp. plus 64 pp. of adverts. Red & gilt foil emblem of Woodard Clark & Co., Chemists, Portland, OR on the rear end paper. With text illustrations and charts. Very good. Hardcover. 
A complete instruction on developing photographs the old-fashioned way, with recipes for making one's own solutions.