Reconnaissance Geology of the Upper St. John and Allagash River Basins, Maine

New and Refined Methods of Trace Analysis Useful in Geochemical Exploration: A Collection of Methods Additional to Those Presented Earlier in U.S. Geological Survey Bulletins 1152 and 1289, Issues 1406-1409

Redefinition of the Hawley and Goshen Schists in Western Massachusetts: Issue 1254

The Bedrock Geology of Massachusetts: Issue 1366

Geochemical Characteristics of Mineralized Breccia Pipes in the Red Mountain District, San Juan Mountains, Colorado: Issues 1377-1381

The Chopawamsic Formation--: A New Stratigraphic Unit in the Piedmont of Northeastern Virginia, Issues 1320-1325