BIBLIOGRAPHY. 125 



CLEVENGER, J. F. 1913. The effect of soot in smoke on vegetation. Mellon Institute of In- 

 dustrial Research and School of Specific Industries. Smoke Investigation 



Bull. No. 7. 

 CLOUGH, H. W. 1905. Synchronous variations in solar and terrestrial phenomena. Astroph. 



Jour., 22: 42-75. July 1905. 

 CORTIE, A. L. 1913. The mode of propagation of the sun's influence in magnetic storms. Mon. 



Not. Roy. Ast. Soc., 73: 539. May 1913. 

 DOUGLASS, A. E. 1909. Weather cycles in the growth of big trees. Mon. Wea. Rev., une 



1909: 225-237. 

 . 1914. Method of estimating rainfall by the growth of trees. Bull. Amer. Geog. Soc., 



Vol. XLVI: 321-335, May 1914. 

 . 1914 2 . A photographic periodogram of the sunspot numbers. Astroph. Jour., Vol. XL, 



No. 3; 326-331, October 1914. 

 . 1914 3 . A method of estimating rainfall by the growth of trees. The climatic factor as 



illustrated in arid America, by E. Huntington. Carnegie Inst. Wash. 



Pub. No. 192, Chapter XI: 101-121. 



. 1915. An optical periodograph. Astroph. Jour., Vol. XLI, No. 3: 173-186. April 1915. 



. 1915 2 . The Callendar sunshine recorder and some of the world-wide problems to which 



this instrument can be applied. Proc. 2d Pan- Amer. Sci. Cong., Sec. II: 



570-579. 

 . 1917. Climatic records in the trunks of trees. Amer. Forestry, December 1917: 



732-735. 

 EVERSHED, JOHN, THOMAS ROYDS, and S. SITARAMA AYYER. 1912. On the relative numbers of 



prominences observed on the eastern and western limbs. Kodaikanal 



Bull. 28: 509-516. 1912. 

 . 1913. The apparent effect of planets on the distribution of prominences. Kodaikanal 



Bull. 35:37-43. 1913. 

 GIBB, DAVID. 1914. The periodogram analysis of the variations of SS Cygni. Mon. Not. Roy. 



Ast, Soc., 74: 678. June 1914. 

 GREELY, A. W. 1891. Irrigation and water storage in the arid regions. Report of the Chief 



Signal Officer to the House of Representatives. 

 HALE, G. E. 1908. Solar Vortices. Astroph. Jour., 28: 100, reprinted in Cont. Mt. Wilson Sol. 



Obs. No. 26. 



. 1908 2 . The study of stellar evolution. The University of Chicago Press. 



. 1908 3 . On the probable existence of a magnetic field in sunspots. Astroph. Jour., 



28:363. 

 . 1913. Preliminary researches of an attempt to detect the general magnetic field of the 



sun. Astroph. Jour., 38, July 1913, reprinted in Cont. Mt. Wilson Sol. 



Obs. No. 71. 

 . and FERDINAND ELLERMAN, S. B. NICHOLSON, and A. H. JOY. 1919. The magnetic 



polarity of sunspots. Astroph. Jour., 49: 153, April 1919. 



HANN, J. 1902. Die Schwankungen der Niederschlagsmengen in grosseren Zeitraumen. 

 HELLMANN, G. 1906. Die Niederschlage in den norddeutschen Stromgebieten. 

 HERBETTE, F. 1914. Le probleme du dessechement de 1'Asie interieure. Annales Geographic, 



15 Janvier 1914: 1-30. 



HUMPHREYS, W. J. 1910. Solar disturbances and terrestrial temperatures. Astroph. Jour., 32: 97. 

 HUNTINGTON, E. 1905. Explorations in Turkestan, by Raphael Pumpelly. Carnegie Inst. 



Wash. Pub. No. 26. 



. 1911. Palestine and its transformation. 



. 1912. The secret of the big trees. Harpers, July 1912: 292-302. 



. 1914. The climatic factor as illustrated in arid America. Carnegie Inst. Wash. Pub. 



No. 192. 

 . 1918. The evolution of the earth and its inhabitants. Climate and the evolution of 



civilization. Yale University Press. 



KAPTEYN, J. C. 1916. Tree-growth and meteorological factors. 

 KIMBALL, H. H. 1908. Pyroheliometer and polarimeter observations. Bull. Mt. Weather 



Obsv., Vol. I, 2-4; Vol. II, 2. 

 . 1910. Solar radiation, atmospheric absorption, and sky polarization at Washington, 



D. C. Bull. Mt. Weather Obsv., Vol. Ill, 2. 

 . 1912. The dense haze of June 10-11, 1912. Bull. Mt. Weather Obsv., Vol. V, part 3: 



161-165. 

 , and MILLER, E. R. 1912 2 . The influence of clouds on the distribution of solar radiation. 



Bull. Mt. Weather Obsv., Vol. V, part 3: 166-183. 

 . 1913. The meteorological aspect of the smoke problem. Mellon Institute of Industrial 



Research and School of Specific Industries. Smoke Investigation 



Bull. No. 5. 

 . 1914. The relation between solar radiation intensities and the temperature of the air 



in the northern hemisphere in 1912-13. Bull.Mt. Weather Obsv., Vol. VI, 



part 5 : 205-220. 

 KIMURA, H. 1913. On the harmonic analysis of sunspot relative numbers. Mon. Not. Roy. 



Ast. Soc., 73: 543, May 1913. 



