Note 32 — THE CHEMICAL RELATION OF IRON AND MANGANESE IN SEDIMENTARY ROCKS.
Reading edition
U. S. Geol. Survey, Tenth Annual Report, 1888–1889, Vol. I., pp. 409–422.
Reading edition
U. S. Geol. Survey, Tenth Annual Report, 1888–1889, Vol. I., pp. 409–422.