26 THE FORAGE AND FIBER CROPS IN AMERICA 



grasses upon the permanent pastures of England, the Royal 

 Agricultural Society appointed a commission which, after in- 

 vestigating the subject for several years, reported that in dif- 

 ferent pastures the species of cultivated grasses ranged from 

 ii to 100 per cent., of legumes from zero to 38 per cent., and 

 miscellaneous plants, so-called weeds, from zero to 89 per cent. 

 No correlation whatever was found between the value of the 

 pasture as shown by the beef and mutton produced and the 

 botanical character of the herbage. Pastures with widely 

 varying proportions of grasses and other plants produced 

 equally good results ; while pastures with the same percentages 

 of different grasses and other plants gave widely differ- 

 ent results. 



24. COLLATERAL READING. W. J. Beal: Grasses of North America, Vol. I, 

 pp. 5-13; 75-78. New York: Henry Holt & Co., 1896. 



William Jasper Spillman: Farm Grasses of the United States, pp. 64-74. 

 New York: Orange Judd Co., 1905. 



F. G. Stebler and C. Schroter: The Best Forage Plants, pp. 3-8. London: 

 David Nutt, 1889. 



H. Marshall Ward: Grasses: A Handbook for Use in the Field and Labora- 

 tory, pp. 6-27. Cambridge at the University Press. 1901. 



George Francis Atkinson: A College Text-book of Botany, pp. 556-564. 

 New York: Henry Holt & Co., 1905. 



Henry Prentiss Armsby: The Principles of Animal Nutrition, pp. 269-271; 

 281-335. New York: John Wiley & Sons, 1903. 



G. H. Hicks: Grass Seed and Its Impurities. In U. S. Dept. Agr. Year- 

 book 1898, pp. 473-493. 



F. Lamson-Scribner: Our Native Pasture Plants. In U. S. Dept. Agr. 

 Yearbook 1900, pp. 581-598. 



C. A. Zavitz: Permanent Pasture. In Ontario Agr. Col. and Expt. Farm 

 Report 1893, pp. 110-117. 



