The Microscopic Determination of the Nonopaque Minerals: Issues 677-680

Geology of the Elliston Region, Powell and Lewis and Clark Counties, Montana: Issues 2045-2047

Geology of the Reliz Canyon, Thompson Canyon, and San Lucas Quadrangles, Monterey County, California: Issue 1141

Rocks and Mineral Resources of the Wolf Creek Area, Lewis and Clark and Cascade Counties, Montana: A Descriptive Report on an Area in the Disturbed Belt Along the Eastern Front of the Northern Rocky Mountains in Western Montana, Issues 1441-1446