96 BULLETIN 7C0, U. S. DEPARTMENT OF AGRICULTURE. 



pressure on the mounting plaster in mounting will be found superior 

 to the unaided fingers. Flowers or other parts essential to identifi- 

 cation should not be hidden by the mounting plaster. 



Small loose material, such as fruits, seeds, and leaves, which may 



envoi one 



be needed for further study, should be inclosed in a small 



in such a way as to be conveniently opened, in some corner of the 



mounting sheet. 



Plant specimens for Washington should not be mounted. 



ADDITIONAL REFERENCES USEFUL IN NATIONAL FOREST 

 RANGE PLANT STUDIES. (ARRANGED CHRONOLOGICALLY.) 



I. TAXONOMIC. 



Watson, S. (and others). Botany (of the King Expedition"). Pveport of the 

 U. S. Geological Exploration of the Fortieth Parallel, vol. 5, Professional 

 Papers of the Engineer Department, U. S. Army, 18, 1871. 



Brewer, W. H., Watson, S., and Gray, A. Botany (of California), Geological 

 Survey of California, vol. 1-2. Cambridge, Mass., University Press, 1S76-S0. 



Rothrock, J. T. (and others). Botany (of the Wheeler Survey). Report upon 

 U. S. Geographical Surveys West of the 100th Meridian, vol. 6, Engineer De- 

 partment, U. S. Army, 1878. 



Coulter, J. M. Botany of Western Texas. Contributions from the U. S-. National 

 Herbarium, vol. 2, 1S91-4. 



Ryclberg, P. A. Catalogue of the Flora of Montana and the Yellowstone Na- 

 tional Park. New York Botanical Garden, Memoirs, vol. 1, 1900. 



Piper, C. V. Flora of the State of Washington. Contributions from the U. S. 

 National Herbarium, vol. 11, 1908. 



Rvdbersr, P. A. Flora of Colorado. Colorado Agricultural Experiment Station, 

 Bulletin 100, 1908. 



Wooton, E. O., and Standley. P. C. Flora of New Mexico. Contributions from 

 the U. S. National Herbarium, vol. 19, 1915. 



Sampson, Arthur W. Important Range Plants. U. S. Department of Agricul- 

 ture, Bulletin 545, 1917. 



II. ECONOMIC. 



Nealley, G. C, and Tracy. S. M. Grasses of the Arid Districts. U. S. Division 



of Botany, Bulletin 6, 1888. 

 Yasey, G. The Agricultural Grasses and Forage Tlants of the United States. 



IT. S. Division of Botany, Special Bulletin, 1S89. 

 rammel, L. H. Notes on the Grasses and Forage Tlants of Iowa, Nebraska, 



and Colorado. U. S. Division of Agrostology, Bulletin 9, 1S97. 

 Williams, T. A. A Report upon the Grasses and Forage Plants and Forage 



Conditions of the Eastern Rocky Mountain Region. U. S, Division of 



Agrostology, Bulletin 12, 1898. 

 Nelson, A. The Red Desert of Wyoming and Its Forage Resources. U. S. 



Division of Agrostology, Bulletin 13. 1898. 

 Smith, J. G. Fodder and Forage Plants, Exclusive of the Grasses. U. S. 



Division of Agrostology, Bulletin 2, 1900. rev. ed. 

 Kennedy, P. B., and Doten, S. B. A Preliminary Report on the Summer 



Ranges of Western Nevada Sheep. Nevada Agricultural Experiment Station, 



Bulletin 51, 1901. 

 Spragg, F. A. Forage Conditions of Central Montana. Montana Agricultural 



Experiment Station. Bulletin 36, 1902. 

 Griffiths, D. Forage Conditions and Problems in Eastern Washington, Eastern 



Oregon. Northeastern California, and Northeastern Nevada. U. S. Bureau 



of Plant Industry, Bulletin 38, 1903. 

 Mackie, W. W. The Value of Oak Leaves for Forage. California Agricultural 



Experiment Station, Bulletin 150, 1903. 

 Griffiths, D. Range Investigations in Arizona. U. S. Bureau of Plant In- 

 dustry. Bulletin 67. 1904. 

 7 ". s. Forest Service, Office of Grazing Studies. Notes on National Forest 



Range Plants. Part I, Grasses, 1914. 

 Wooton, E. O. Factors Affecting Range Management in New Mexico. F. S. 



Department of Agriculture, Bulletin 211, 1915. 



