Bitting, A. W. 1870-1946. Experiments on the spoilage of tomato ketchup. By A.W. Bitting ... - Washington, Govt. Print. Off., 1909. - 37 p. illus., II pl. 23 cm. LCCN: agr09000012 Subjects--Topical Terms: Ketchup. LC Class. No.: S585 / .A1 no. 119 TX612.T7 / B6