TY  - BOOK
AU  - Chesterman,Charles Wesley
AU  - Schmidt,Frederick Sommer
ED  - California.
TI  - Pumice, pumicite, and volcanic cinders in California,
T2  - California.  Division of Mines.  Bulletin,
AV  - TN24.C2 A3 no. 174
U1  - 553.69 
PY  - 1956///
CY  - San Francisco
KW  - Pumice
KW  - California
KW  - Volcanic ash, tuff, etc
KW  - Petrology
N1  - Part of illustrative matter folded in pocket; Includes bibliographical references
ER  -