69 
S P C 1528 B 
s p c 1529 C 
S P C 1530 D 
S P C 1531 E 
S P C 1532 F 
S P C 1533 G 
S P C 153^ H 
S P C 1535 I 
S P C 1536 J 
S P C 1537 K 
Bermuda? tripoli; with KO 
Richmond, Virginia; light portion 
Piscataway, Maryland 
Altamaha River, Georgia; ricefields 
West Point, New York; fossil fluviatile diatoms 
Blue Hill Pond, Maine 
Near Mount Holly, New Jersey; Cretaceous rocks; 
greensand and other casts of Polythalamia 
Enterprise, Florida; 200 miles from mouth of St. John's 
River, on roots of Pistia 
Monterey, California; lower stratum 
North Lakehouse, San Francisco, California 
* See note on page 15^-. 
