A text-book of grasses with especial reference to the economic species of the United States . Fig. 2. Production of timothy in the United States. One dot represents100,000 Fig. 3. Production of timothy and clover mixed in the United States. One dotrepresents 100,000 tons. 16 A TEXT-BOOK OF GRASSES
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Keywords: ., bookauthorhi, bookcentury1900, bookdecade1910, booksubjectgrasses