Bay, Harry X., 1906- A preliminary investigation of the bleaching clays of Mississippi, by Harry X. Bay ... - [University, Miss.] 1935. - 62 p. incl. pl., tables, diagrs. 23 cm. - Mississippi. State geological survey. Bulletin 29 . Bibliography: p. 59-62. LCCN: gs 36000014 Subjects--Topical Terms: Clay--Mississippi.Bentonite. LC Class. No.: QE129 / .A2 no. 29