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The importance of seed characteristics in the natural reproduction of coniferous forests

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By: Hofmann, Julius Valentine,

Publication info: Minneapolis, University of Minnesota, 1918

Holding Institution: University of California Libraries
The natural regeneration of Douglas fir in the Pacific Northwest

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By: Hofmann, Julius Valentine,

Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1924

Holding Institution: U.S. Department of Agriculture, National Agricultural Library