Washington, DC: United States Geological Survey/USGS/Government Printing Office/GPO, 1971. Softcover. Item #46755
A study of assimilation and the resulting systematic and interrelated differences in chemistry and mineralogy within a well exposed granitoid outcrop area of 20 square miles. 48 pages with map, tables, graphs, bibliography and index, plus the folded map plate in the rear pocket. Bound in original stiff gray paper printed in black. Stamp of geologis Richard H. Jahns on the front cover. A near fine copy.