01236cam a22002531 4500 gs 07001017 DLC 20260227111306.0 800627s1906 paub 000 0 eng c gs 07001017 (OCoLC)6468512 U.S. Geol. Survey. Library Vi DLC premarc GA01.P4 A4 Pennsylvania. Bureau of Topographic and Geologic Survey. Topographic and geological survey of Pennsylvania made in co-operation with the United States Geological Survey, 1899-1906. Harrisburg, Pa., Harrisburg Publishing Co., state printer, 1906. 1 p.l., 308 p. front. (double map) 24 cm. George W. McNees, Andrew S. McCreath, Richard R. Hice, commissioners. Appendices.--A. Legislative acts and contracts. B. Triangulation and primary traverse. C. Meridian lines and magnetic determinations. D. Results of spirit leveling in Pennsylvania for the years 1899 to 1905, inclusive, by S. S. Gannett and D. H. Baldwin. E. List of completed topographic maps. F. Geological publications. Topographical surveying. Surveying. Geology Pennsylvania. 24660 24660