Watson, John Wilbur. Abstraction of potassium during sedimentation, by John Wilbur Watson ... - [Lynchburg, Va., J.P. Bell Company, Incorporated, Printers, 1913] - 30 p. 26 cm. Thesis (Ph. D.)--University of Virginia. Bibliography: p. [29]-30. LCCN: gs 19000171 Subjects--Topical Terms: Sedimentation and deposition.Potassium. LC Class. No.: S593 / .W2