01415cam a22002651 4500 gs 07000710 DLC 20260227111306.0 840525s1883 pauabf 000 0 eng c gs 07000710 (OCoLC)10774840 U.S. Geol. Survey. Libr. PWbW DLC premarc QE157 .A16 vol. 16, pt. 1 Geological Survey of Pennsylvania. The geology of Lehigh and Northampton Counties. General introduction by J.P. Lesley. Slate belt and quarries, by R.N. [i.e. H.] Sanders. Water gaps, by H.M. Chance. Limestone belt and iron ore mines, by F. Prime. Itinerary survey of the mountains, by C.E. Hall. Harrisburg, Board of Commissioners for the Second Geological Survey, 1883. xxivD3, D3-283, 4 p. illus., plates, map, diagrs. 23 cm. and atlas of 28 fold. maps (part col.) Second geological survey of Pennsylvania: report of progress, D3, v. 1 Atlas sheets also illustrate D3, v. 2: The geology of the South Mountain belt of Berks County, by E.V. D'Invilliers. Geology Pennsylvania Lehigh County. Geology Pennsylvania Northampton County. D'Invilliers, Edward Vincent, 1857- Geology of the South Mountain belt of Berks Co. Report of progress (Geological Survey of Pennsylvania), D3, v. 1. 24618 24618