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Water-power -- Pennsylvania

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Filed under: Water-power -- Pennsylvania
  • [X-Info] Arbor day and bird day ... October 27, 1922. ([Harrisburg, 1922), by Pennsylvania. Dept. of public instruction, Ralph L. Watts, Fred Crabtree, George Hall Ashley, Robert Young Stuart, John Horace MacFarland, Henry Wharton Shoemaker, Gifford Pinchot, Thomas Edward Finegan, and William Cameron Sproul (page images at HathiTrust)
Filed under: Water-power -- Pennsylvania -- PhiladelphiaFiled under: Hydroelectric power plants -- Pennsylvania Filed under: Hydroelectric power plants -- Allegheny River (Pa. and N.Y.)Filed under: Hydroelectric power plants -- Law and legislation -- Pennsylvania Filed under: Hydroelectric generators -- Law and legislation -- PennsylvaniaFiled under: Hydroelectric power plants -- Licenses -- Pennsylvania

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