| States and its possessions. The first compilation, "North American Geologic Formation Names," Bulletin 191...contains: (1) an alphabetical listing of 1,500 North American sedimentary formation names and 100 names...year 1955), Bulletin 1056-A, "Geologic Names of North America Introduced in 1936-1955," by Druid Wilson...listed about 5,000 new names introduced for use in North America, the Pacific Island possessions of the United...nonalphabetical "Index to the Geologic Names of North America," Bulletin 1056-B, by Druid Wilson, Grace |
