700 



INDEX 



Matson, G. C. *Louisiana clays, 

 including results of tests made in 

 the laboratory of the Bureau of 

 Standards at Pittsburgh. 205. 



Matthes, F. E. tThe preglacial his- 

 tory of Yosemite Valley. 98. 



Matjchly, S. J. fA study of pressure 

 and temperature effects in earth- 

 current measurements. 371. 



Maxon, W. R. a new Anemia from 

 Mexico. 199. 



A new Polystichum from Cali- 

 fornia. 620. 



McAtee, W. L. *The shedding of the 

 stomach lining by birds, partic- 

 ularly as exemplified by the 

 Anatidae. 606. 



§7V sketch of the natural his- 

 tory of the District of Columbia. 

 415. . 



*Some local names of birds. 



541. 



*Winter birds about Washing- 

 ton, D. C, 1916-1917. 407. 



McBride, R. S. *Gas mantle light- 

 ing conditions in ten large cities 

 in the United States. 456. 



McIndoo, N. E. tThe senses of in- 

 sects. 138. 



McKeehan, L. W. fDiffusion of, 

 and recoil from, actinium emana- 

 tion. 74. 



Meggers, W. F. jThe refractive 

 index and optical dispersion of air. 

 181. 



*Wave lengths in the red and 



infra-red spectra of iron, cobalt, 

 and nickel arcs. 575. 



Meinzer, O. E. *Geology and water 

 resources of Big Smoky, Clayton, 

 and Alkali Spring valleys, Nevada. 

 95. 



• — — tThe glacial history of Colum- 

 bia River in the Big Bend region. 

 411. 



*Ground water for irrigation in 



Lodgepole Valley, Wyoming and 

 Nebraska. 65. 



Mendenhall, C. E. tDetermination 

 of the constant C2 of Planck's 

 law. 292. 



Merica, p. D. tThermal expansion 

 of alpha and of beta brass. 293. 



*Thermal expansion of alpha 



and of beta brass between 0-600°C. 

 573. 



Merriam, J. C. tCave-hunting in 

 California. 542. 



Merrill, G. P. tThe rarer constit- 

 uents of meteorites. 98. 



Merrill, P. W. *The application of 

 dicyanin to stellar spectroscopy. 

 405. 



Mertie, J. B., .Jr. *The gold placers 

 of the Tolovana district, Alaska. 

 454. 



Merwin, H. E. tComplementary 

 colors and the properties of pig- 

 ments. 254. 



tPolymorphism of the oxides of 



lead. 75. 



Metcalf, M. M. Opalina and the 

 origin of the ciliate Infusoria. 

 427. 



tOpalina and the origin of the 



Ciliata. 414. 



Filler, G. S., Jr. Synopsis of the 

 supergeneric groups of Rodents. 

 431. 



Miser, H. D. *Gravel deposits of 

 the Caddo Gap and De Queen 

 quadrangles, Arkansas. 538. 



Mohler, F. L. tlonization and reso- 

 nance potentials for electrons in 

 vapors of magnesium and thallium. 

 373. 



Mohler, F. H. Low voltage dis- 

 charge in sodiuin vapor. 513. 



MoREY, G. W. tQuantitative appli- 

 cations of the phase rule. 75. 



*The ternary system H20-K2Si03- 



SiOa. 203. 



Morrison, Harold. tNotes on the 

 Virgin Islands. 299. 



Morse, W. J. tMorphoIogical char- 

 acters and food value of soy-bean 

 varieties. 141. 



