616 



INDEX 



Humphreys, W. J . American tempera- 

 tures and European rainfall. 345. 



Is lighting discharge of direct or 



oscillatory character? 336. 



On thunderstorms. 335. 



Hunter, J. Fred. *Erosion and sed- 

 imentation in Chesapeake Bay 

 around the mouth of Choptank 

 River. 421. 



Melilite and other minerals from 



Gunnison County, Colorado. 473. 



Irving, John Dubr. *Geology and 

 ore deposits near Lake City, Col- 

 orado. 193. 



Jackson, H. J. *The Ohio Valley 

 flood of March to April, 1913. 227. 



Jackson, R. F. Equilibrium in the 

 system: lead acetate, lead oxide, 

 water. 496. 



Jamieson, Clara O. *A bacterium 

 causing the disease of sugar beet 

 and nasturtium leaves. 119. 



Johnson, Harry R. *Water resources 

 of Antelope Valley, California. 

 198. 



Johnson, W. T., Jr. *Ability of Strep- 

 tococci to survive pasteurization. 

 504. 



— — *Pasteurization in bottles and the 

 process of bottling hot pasteurized 

 milk. 290. 



Johnston, John. *Observations on 

 the Daubree experiment and capil- 

 larity in relation to certain geo- 

 logical speculations. 5. 



Some effects of high pressure. 588. 



Jones, L. A. A transmission and re- 

 flection photometer for small areas. 

 313. 



Kearney, T. H. *Indicator signifi- 

 cance of vegetation in Tooele Val- 

 ley, Utah. 228. 



Kebler, L. F. Chemical investiga- 

 tions in tablet medication. 87. 



Kellberg, I. N. The electrical re- 

 sistance and critical ranges of pure 

 iron. 436. 



Kellerman, Karl F. Bacterial pre- 

 cipitation of calcium carbonate. 

 400. 



Kelton, F. C. *Geology and water 

 resources of Sulphur Spring Valley, 

 Arizona. 197. 



Kempton, J. H. A hybrid between 

 Tripsacum and Euchlaena. 114. 



Kimball, H. H. The relation be- 

 tween the solar radiation intensi- 

 ties and the air temperatures for 

 the Northern hemisphere. 205. 



Measurements of the total radia- 

 tion received on a horizontal sur- 

 face from the sun and sky. 587. 



*The total radiation received on a 



horizontal surface from the sun and 

 sky at Mount Weather, Va. 584. 



A return to normal atmospheric 



transparency. 17. 



Klein, A. A. The hydration of Port- 

 land cement. 573. 



Knab, F. *The mosquitoes of North 

 and Central America and the West 

 Indies. 232. 



Knowlton, F. H. *The Jurassic flora 

 of Cape Lisburne, Alaska. 165. 



Koehler, Rene. *A contribution to 

 the study of the Ophiurans of the 

 United States National Museum. 

 290. 



Kolster, Frederick A. A direct 

 reading instrument for measuring 

 the logarithmic decrement and 

 wave length of electromagnetic 

 waves. 569. 



KtJMMEL, H. B. *Raritan, New Jer- 

 sey, folio. 371. 



Lamb, D. S. Sanitation in ancient 

 civilization. 591. 



Lamb, W. H. *Discussion of chemical 

 analysis in distinguishing Jeffrey 

 pine. 501. 



*A conspectus of North American 



firs. 607. 



Lambert, W. D. The motion of fall- 

 ing bodies. 334. 



•Abstracts. 



