Note 21 — THE CHEMICAL RELATION OF IRON AND MANGANESE IN SEDIMENTARY ROCKS.
Reading edition
Jahrb. des Vereins f. Naturkunde in Herz. Nassau, Vol. VI., p. 160 (Bischof).
Reading edition
Jahrb. des Vereins f. Naturkunde in Herz. Nassau, Vol. VI., p. 160 (Bischof).