BIBLIOGRAPHY. 369 



Knight, H. G., F. E. Hepner, and A. Nelson. 1906. Wyoming forage plants and their 

 chemical composition — Studies No. 2. Bull. 70. 



t . 1908. Wyoming forage plants and their chemical composition — Studies 



No. 3. Bull. 76. 



t 1 . 1911. Wyoming forage plants and their chemical composition — Studies 



No. 4. Bull. 87. 

 Knuchel, H. 1914. Spektrophotometrische Untersuchungen im Walde. Mitt. Schweiz. Cent. 



Vers. Reviewed by O. L. Sponsler, Proc. Soc. Am. For. 10: 82. 1915. 

 Koppen, W. 1884. Die Warmezonen der Erde. 1:215. 

 Korstian, C. F. 1917. The indicator significance of native vegetation in the determination of 



forest sites. Plant World 10: 267. 

 Kullmer, C. J. 1914. The shift of the storm track. In Huntington's "The Climatic Factor." 



Carnegie Inst, Wash. Pub. 192: 193. 

 Lamb, G. N. 1915. A calendar of the leafing, flowering, and seeding of the common trees of 



the eastern United States. Mon. Weather Rev. Suppl. 2. 

 Lantz, D. E. 1918. Rodent pests of the farm. U. S. Dept. Agr. Farmers' Bull. 932. 

 Larsen, J. A. 1916. Silvical notes on western larch. Proc. Soc. Am. For. 11: 434. 

 Larsen, L. T., and T. D. Woodbury. 1916. Sugar pine. U. S. Dept. Agr. Bull. 426. 

 Leiberg, J. B. 1S97. General report on a botanical survey of the Coeur D'Alene Mountains in 

 Idaho during the summer of 1895. Contr. U. S. Nat. Herb. 5:1. 



. 1899. Priest River, Bitterroot, San Gabriel, etc., Forest Reserves. U. S. Geol. Surv. 



Rep. 19:5. 



. 1900. Bitterroot, San Gabriel, San Bernardino, etc., Forest Reserves. 76.20:5. 



Linne, C. von. 1751. Philosophia Botanica, 



Linnet. C. E., and F. Garcia. 1918. Climate in relation to crop adaptation in New Mexico. 



N. M. Agr. Expt. Sta. Bull. 113. 

 Livingston, B. E. 1906. The relation of desert, plants to soil moisture and evaporation. Carnegie 

 Inst. Wash. Pub. 50. 



. 1913. Climatic areas of the United States as related to plant growth. Proc. Am. Phil. 



Soc. 52:257. 



and F. T. McLean. 1916. A living climatological instrument. Sci. 43: 362. 



Long, F. L. 1919. The quantitative determination of photosynthetic activities in plants. 



Phys. Res. 2:277. 

 MacBride, J. 1916. Vegetative succession under irrigation. Jour. Agr. Res. 6: 741. 

 MacDougal, D. T. 1900. Influence of inversions of temperature, ascending and descending 

 currents of air, upon distribution. Biol. Lectures. 



. 1904. Delta and desert vegetation. Bot. Gaz. 38: 44. 



. 1908. Botanical features of the North American deserts. Carnegie Inst. Wash. Pub. 99. 



. 1914. The Salton Sea: a study of the geography, the geology, the floristics and ecology 



of a desert basin. Carnegie Inst. Wash. Pub. 193. 

 Markle, M. S. 1917. Root systems of certain desert plants. Bot. Gaz. 64: 177. 

 Marsh, C. D. 1918. Stock-poisoning plants of the range. U. S. Dept. Agr. Bull. 575. 



, and A. B. Clawson. 1916. Lupines as poisonous plants. U. S. Dept. Agr. Bull. 405. 



Mason, D. T. 1913. Physical versus cover types. Proc. Soc. Am. For. 8: 91. 



. 1915. The life history of lodgepole pine in the Rocky Mountains. U.S. Dept, Agr. Bull. 154. 



McAtee, W. L. 1915. Eleven important wild-duck foods. U. S. Dept, Agr. Bull. 205. 



. 1918. Food habits of the mallard ducks of the United States. U. S. Dept. Agr. Bull. 720. 



McLean, F. T. 1917. A preliminary study of climatic conditions in Maryland, as related to 



plant growth. Phys. Res. 2: 129. 

 McMurdo, G. A. 1916. Cereal experiments at the Akron Field Station, Akron, Colo. U. S. 



Dept. Agr. Bull. 402. 

 Merriam, C. H. 1890. Results of a biological survey of the San Francisco Mountain region and 

 desert of the Little Colorado in Arizona. North American Fauna 3. 



. 1893. The Death Valley expedition. North American Fauna 7. 



. 1898. Life zones and crop zones. U. S. Dept. Agr. Biol. Surv. Bull. 10. 



. 1899. Results of a biological survey of Mount Shasta, California. North American 



Fauna 16. 

 Miller, E. C. 1916. Comparative study of the root systems and leaf areas of corn and the 

 sorghums. Jour. Agr. Res. 6: 311. 



. 1916. The root systems of agricultural plants. Jour. Am. Soc. Agronomy 8: 129.. 



Mitchell, J. A. 1918. Incense cedar. U. S. Dept. Agr. Bull. 604. 



. 1919. Bear clover. Jour. For. 17: 39. 



Moore, B. 1913. Definition and use of forest types. Proc. Soc. Am. For. 8: 73. 



. 1917. Some factors influencing the reproducion of red spruce, balsam fir, and white pine. 



Jour. For. 15:827. 

 Moore, H. L. 1914. Economic cycles: Their law and cause. 



. 1917. Forecasting the yield and the price of cotton. 



Munger, T. T. 1912. Natural versus artificial regeneration in the Douglas-fir region of the Pacific 

 Coast. Proc. Soc. Am. For. 7: 187. 



