6o6 



AUTHOR INDEX 



JEANCON, J. A. *Antiquities of Jemez 

 Plateau, New Mexico. 419. 



Jennings, O. E. Plants from north- 

 western Ontario, new and note- 

 worthy. 453. 



Jones, Edward L. *Manganese ore in 

 Nevada, deposits of. 573. 



*Manganese ore in southeastern 



California, deposits of. 470. 



Jones, K. K. *Pellagra, biochemical 

 studies of the saliva in. 415. 



Kahler, H. *Reflecting power of stel- 

 lite and lacquered silver. 22. 



*SpectraI photoelectric sensitivity 



of silver sulphide and other sub- 

 stances. 43. 



Karrer, Enoch. Contrast sensibility 

 of the eye. 325. 



fContrast sensibility of the eye 



under low illumination. 475. 



fDiffusion of light along a search- 

 light beam. 475. 



Kellerman, Karl F. Boron, effect 

 of salts of, upon the distribution 

 of desert vegetation. t-i20, 481. 



Kendall, W. C. jTrout of the Great 

 West. 581. 



Kid WELL, C. H. Analysis of the brine 

 from the Ligonier well in Pennsyl- 

 vania. 385. 



Knowlton, F. H. *Mesozoic and Ceno- 

 zoic plants of North America, 

 catalogue of. 273. 



KouwENHOvEN, William B. *Loca- 

 tion of flaws in rifle-bkrrel steel, 

 by magnetic analysis. 329. 



Kunkle, L. O. fWart of potato. 211. 



Lambert, Walter D. Earth, internal 

 constitution of. 122. 



Lamson-Scribner, F. fParks and gar- 

 dens of Buenos Aires. 211. 



tRock Creek Park. 580. 



Lane, Franklin K. *Conservation 



through engineering. 273. 

 LeverETT, Frank. *Surface forma- 

 tions and agricultural conditions 

 in the southern half of Minnesota. 

 471. 



Lewton, F. L. ]Andira excelsa, poi- 

 sonous seeds of. 500. 



Kidney cotton, history of. 591. 



LiTTLEHALES, G. W. *Physical char- 

 acteristics of ocean depths. 80. 



Mackenzie, D. fVelocity of flame 

 propagation in gas-engine cylinders. 



477. 



Mann, William M. *Ants of British 

 Solomon Islands. 298. 



Manning, P. D. V. *Bucher process, 

 equilibrium studies upon. 79. 



Marsh, C. Dwight. fPoisonous plants 

 and their effects. 308. 



Marvin, C. F. fSolar radiation mea- 

 surements in weather forecasting 

 in Argentina. 236. 



Mayor, Alfred G. fCoral reefs of 

 American Samoa. 309. 



McCaskey, H. D. • *Mineral supplies, 

 our. 326. 



McGlashan, H. D. *Southern Cali- 

 fornia floods of January, 1916. 

 473. 



McIndoo, N. E. fOrthoptera, the 

 olfactory sense of. 527. 



Meggers, W. F. fMicrophotometer 

 for photographic densities, a new. 

 497. 



Merica, p. D. *Constitution and 

 metallography of aluminum and 

 its light alloys with copper and 

 magnesium. 416. 



Merrill, Paul W. *Measurement of 

 wave lengths in the spectra of 

 krypton and xenon. 44. 



Metcalf, F. p. Notes on North 

 Dakota plants. 188. 



Meyers, C. H. fManometer, a 15- 

 atmosphere, and a 100-atmosphere 

 piston gage. 499. 



MiNGAYE, John C. H. Iron meteorite 

 found at Yenberrie, Northern Terri- 

 tory of Australia, an. 314. Correc- 

 tion, 596. 



Miser, H. D. Hausmannite in the 

 Batesville District, Arkansas. 1. 



