Note 78 — CHEMICAL EXAMINATION. (continued 2)
Reading edition
——. Putrescibility and stability of sewage effluents: Contrib. Sanit. Research Lab., Mass. Inst. Tech., Vol. 5, p. 87, 1909; also The disinfection of sewage and sewage filter effluents: U. S. Geol. Survey Water-Supply Paper 229, pp. 74–88, 1909.