Elsden, James Vincent. Principles of chemical geology; a review of the application of the equilibrium theory to geological problems, by James Vincent Elsden ... - London, New York, Whittaker, 1910. - viii,222p. diagrs. 22 cm. LCCN: gs 10000526 Subjects--Topical Terms: Geochemistry. LC Class. No.: QE515 / .E6