PRELIMINARY CONCENTRATION TESTS ON MESABI ORES Bulletin No. 2 The University Of Minnesota

Minnesota School Of Mines Experiment Station: Minneapolis, 1913. Paperback. Very Good. Item #21-2163

Illus., three foldout charts, 9 x 6", printed stapled grey wraps, lettering on front cover, (125)pp. Covers chipped, soiled, toned, contents have light soiling and edge tears else good.

Price: $12.50

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