Contributions to the geology and mineralogy of California. [Diatoms. By Henry G. Hanks, State Mineralogist] - Sacramento, J.D. Young, Supt. State Printing, 1881. - 8 p. 23 cm. LCCN: ca 08001776 Subjects--Topical Terms: Diatoms. LC Class. No.: QK569.D54 / H3