RANGE BIBLIOGRAPHY 49 



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Pammel, L. H. (891) 



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Peters, A. J. (893) 



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Piper, C. V. (895) 



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(896) 



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and McKee, R. * (897) 



bur clover. U. S. Dept. Agr. Farmers' Bull. 693, 14 pp., illus. 1915. 



Pittuck, B. C. (898) 



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the brome grasses. Natl. Wool Grower 6 (3): 38-40, illus. 1916. 



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the fescue grasses. Natl. Wool Grower 6 (7): 17-19, illus. 1916. 



the grama grasses. Natl. Wool Grower 6 (9): 27, 28, 35, illus. 1916. 



(905) 



