INDEX 



629 



Mathematics. Equations with one un- 

 known constant. H. E. Mekwin. 

 467. 

 Metallography. Metallography ap- 

 plied to inspection. W.Tassin. 87. 

 Meteorology. American temperatures 

 and European rainfall . W. J. Hum- 

 phreys. 345. 



Atmospheric transparency for radia- 

 tion. F. E. FowLE. 206. 



First analysis of the Sun's magnetic 

 field. L. A. Bauer. 127. 



A formula for calculating solubility, 

 vapor pressure and optical disper- 

 sion. H. E. Merwin. 204. 



Measurements of the total radiation 

 received on a horizontal surface 

 from the sun and sky. H. H. Kim- 

 ball. 587. 

 *The total radiation received on a 

 horizontal surface from the sun and 

 sky at Mt. Weather, Va. H. H. 

 Kimball. 581. 



Is lightning discharge of direct or 

 oscillatory character? W. J. Hum- 

 phreys. 336. 



Measurement of crystallographic and 

 optical properties at high tempera- 

 • turcs. F. E. Wright. 205. 



Normal atmospheric transparency. 

 H. H. Kimball. 17. 

 . On thunderstorms. W. J. Hum- 

 phreys. 335. 



The relation between solar radiation 

 and air temperatures. H. H. Kim- 

 ball. 205. 



References: 526. 

 Mineralogy. Babingtonite from Pas- 

 saic County. C. N. Fenner. 552. 



Additional notes on babingtonite. 

 C. N. Fenner. 599. 



Cebollite, a new mineral. E. S. Lar- 

 sen and W. T. Schaller. 480. 



Compositions of minerals. E. T. 

 Wherry. 111. 



Crystal form of hodgkinsonite. C. 

 Palache. 153. 



Crystallized chrysocolla. J. B. Um- 



PLEBY. 181. 

 Pintadoite and uvanite, two new 



vanadium minerals from Utah: A 



preliminary note. F. L. Hess and 



W. T. Schaller. 576. 

 Identity of empressite with muth- 



mannite. W. T. Schaller. 497. 

 Melilite and other minerals from 



Gunnison County, Colorado. E. 



S. Larsen and J. F. Hunter. 



473. 

 Mineralogical notes, series 3. W. T. 



Schaller. 354. 

 The optical properties of azurite and 



alamosite. H. E. Merwin. 253. 

 Searlesite, a new mineral. E. S. Lar- 

 sen and W. B. Hicks. 397. 

 Wurtzite at Goldfield, Nevada. F. 



L. Ransome. 482. 

 Oceanography. Circulation of abyssal 



water of oceans. A. H. Clark. 1. 

 References: 376. 

 Ornithology. Arabic interpretations of 



the songs of birds. P. B. Pope- 



NOE. 204. 

 Bird migration in the Mackenzie 



Valley. W. W. Cooke. 204. 

 The problem of the gliding gull. W. 



Palmer. 203. 

 Winter bird-life in the swamps of 



Alabama. E. G. Holt. 203. 

 *Genus chordeiles Swainson. H. C. 



Oberholser. 608. 

 References: 267,528. 

 Paleontology. *Cambrian Geologj^ and 



Paleontology, II, Nos. 11, 12, 13. 



CD. Walcott. 371, 372. 

 ♦Cambrian Geology and Paleontology, 



III, No. 1. The Cambrian faunas 



of Eastern Asia. C. D. Walcott. 



423. 

 Cretaceous formations of New Mexi- 

 co. D. E. Winchester. 300. 

 Fauna of the Pleistocene asphalt at 



Rancho La Brea, California. J. 



C. Merriam. 260. 



* Abstracts. 



