01563cam a22003131 4500 gs 42000242 DLC 20260227111348.0 760323s1941 pauabf s000 0 eng c gs 42000242 (OCoLC)2064113 U. S. Geol. Survey Library PPT DLC QE158.L38 M5 557.4827 Miller, Benjamin L. (Benjamin LeRoy), 1874-1944. Lehigh county, Pennsylvania. Geology and geography, by Benjamin LeRoy Miller ... with chapters on Pre-Cambrian geology, by Donald McCoy Fraser ... Jacksonburg formation, by Ralph LeRoy Miller ... Martinsburg formation, by Bradford Willard ... Triassic rocks, by Edgar T. Wherry. Harrisburg, Pa., Dept. of internal affairs, Topographic and geologic survey, 1941. viii, 492 p. incl. illus., tables. front., plates (1 fold.) 2 fold. maps (in pockets) 24 cm. Pennsylvania. Geological survey (4th, 1919- ) Bulletin C39 "List of the most important historical publications dealing with Lehigh county": p. 20-22. "Bibliography and cartography": p. 24-62. Geology Pennsylvania Lehigh County. Mines and mineral resources Pennsylvania Lehigh County. Physical geography Pennsylvania Lehigh County. Fraser, Donald McCoy, 1903- Miller, Ralph L. (Ralph LeRoy), 1909- Willard, Bradford, 1894- Wherry, Edgar Theodore, 1885- Bulletin C, 39. 27825 27825