By: Pennsylvania. Department of Public Instruction. - Ashley, Geo. H. (George Hall), - Crabtree, Fred. - Finegan, Thomas Edward, - MacFarland, John Horace, - Pinchot, Gifford, - Shoemaker, Henry W., - Sproul, William Cameron, - Stuart, Robert Young, - Watts, Ralph L. (Ralph Levi),
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Publication info: Harrisburg, 1922
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Holding Institution: Library of Congress
Subjects: 1847-1922 1858-1919 Arbor Day Babcock, Charles Alonzo, Bird Day Flowers Forests and forestry Game and game-birds Mines and mineral resources Pennsylvania Roosevelt, Theodore, Soils Water-power
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