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Publisher
- The Survey7
- Dept. of the Interior, U.S. Geological Survey3
- Interior--Geological Survey3
- Published by S. Augustus Mitchell3
- Rand, McNally & Co.3
- U.S. Dept. of the Interior, Geological Survey3
- U.S. Geological Survey3
- publisher not identified3
- Army Service School2
- Baird Halberstadt2
- Geological Survey2
- Pennsylvania Bureau of Topographic and Geologic Survey2
- Published by J.H. Colton & Co., No. 172 William St.2
- Published by R.L. Barnes no. 27 Sth. 6th. St. Philadelphia2
- U.S. Coast and Geodetic Survey2
- publisher not identified,Engrav'd & print'd at A. Kollner's Lith'y2
- Amos Lay1
- C.S. Hammond & Co.1
- Coast Survey Office1
- Commonwealth of Pa., Dept. of Internal Affairs, Topographic and Geologic Survey1
