Note 70 — CHEMICAL EXAMINATION.
Reading edition
Palmer, A. W. Chemical survey of the waters of Illinois, Report for years 1897–1902, pp. 27–8, Univ. Ill., 1903.
Reading edition
Palmer, A. W. Chemical survey of the waters of Illinois, Report for years 1897–1902, pp. 27–8, Univ. Ill., 1903.