00807cam a22002411 4500 gs 21000368 DLC 20260227111326.0 851001s1920 mtua 001 0 eng c gs 21000368 (OCoLC)12622674 U.S. Geol. Survey. Library WaChenE WaChenE DLC premarc n-us-mt TN560 .P8 Pulsifer, Harry Bridgman, 1879-1947. Mechanical ore sampling in Montana, by H.B. Pulsifer. Butte, Mont. State School of Mines 1920. 72 p. illus. 23 cm. University of Montana bulletin. Bureau of Mines and Metallurgy series no. 3 "Important publications on sampling:" p. 69-70. Ores Sampling and estimation. 26126 26126