Part 30

PALMER, A. W. Chemical survey of the waters of Illinois, Report for years 1897–1902, pp. 27–8, Univ. Ill., 1903.

Bibliography 71:

——. Report of the University of Illinois [in Report of streams examination, Sanitary Dist. Chicago], p. 60, Chicago, 1903;

Bibliography 71a:

p. 56;

Bibliography 71b:

pp. 61–4.

Bibliography 72:

PARKER, G. H. Report of the biologist: Examinations by the State Board of Health of water supplies of Mass., 1887–90, pt. 1, Examination of water supplies, pp. 583–7, 1890.

Bibliography 73:

PARMELEE, C. L., and ELLMS, J. W. On rapid methods for the estimation of the weight of suspended matters in turbid waters: Tech. Quart., Vol. 12, pp. 145–64, 1899.

Bibliography 74:

PFEIFER, J., and WARTHA, PROF. Kritische Studien über Untersuchung und Reinigung des Kesselspeisewassers: Z. angew. Chem., Vol. 15, pp. 193–207, 1902.

Bibliography 75:

PHELPS, E. B. A critical study of the methods in current use for the determination of free and albuminoid ammonia in sewage, Public Health Papers and Reports, Am. Pub. Health Assoc., Vol. 29, p. 354, 1904; J. Infect. Dis., Vol. 1, p. 327, 1904.

Bibliography 76:

——. The determination of the organic nitrogen in sewage by the Kjeldahl process: J. Infect. Dis., Supp. 1, pp. 255–72, 1905.

Bibliography 77:

——. The determination of small quantities of copper in water: J. Am. Chem. Soc., Vol. 28, pp. 368–72, 1906.

Bibliography 78:

——. 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.

Bibliography 79:

Preface to report of committee on the pollution of water supplies: Public Health Papers and Reports, Am. Pub. Health Assoc., Vol. 23, pp. 56–7, 1897. Report, pp. 58–100.

Bibliography 80:

Report of committee on standard methods of water analysis: Public Health Papers and Reports, Am. Pub. Health Assoc., Vol. 27, pp. 377–91, 1901.

Bibliography 81:

PROCTOR, H. R. Some recent methods of technical water analysis: J. Soc. Chem. Ind., Vol. 23, pp. 8–11, 1904.

Bibliography 82: