INDEX TO VOLUME IV.* 



Academy, National, meeting in 



New York, 422, 501. 

 Air, impurity in, 325. 

 Alcohol, Power, Monier-Williams, 



76. 

 Alcyonaria and Actinaria, Arctic, 



Verrill, 84. 

 Ammonites, Diener, 120. 

 Antevs, E., recession of last ice 



sheet in New England, 417. 

 Antimony mines, China, Hubbard, 



453- 

 Arctic Expedition, Canadian, 1913- 

 . 1918, Verrill, 84. 

 Armstrong, P., zircon as criterion 



of igneous metamorphics, 391. 

 Association, American, meeting at 



Salt Lake City, 94. 

 Atmosphere, heavier constituents, 



Thomson, 415. 

 Aurora, spectrum of, 324. 



B 



Baker, H. F., Geometry, 326. 



Banking, Westerfield, 90. 



Barium silicates, Eskola, 331. 



Bauer, L. H., cyprine, from Frank- 

 lin, N. J., 249. 



Berry, E. W., Saccoglottis, recent 

 and fossil, 127. 



Biology, L. L. Woodruff, 421. 



— relations of, Curtis, 327. 



— of sea-shore, Flattely and Wal- | 

 ton, 328. 



Blum, A., Petroleum, 415. 

 Bohemia, Silurian of, Perner and 1 

 Kodym, 53. 



BOTANY. 



Lichens, British, A. L. Smith, 88. 



New Zealand, Vegetation, Cock- 

 ayne, 86. 



Pflanzenwelt Afrikas, Engler, 86. 



Physiologie Vegetale, Maquenne, j 

 S 7 . 



Slime-moulds, North American, | 

 Macbride, 87. 



Soil Conditions and Plant 

 Growths, Russell, 88. 



Vegetaux, Mouvements des, 

 Dutrochet, 86. 



*This Index contains the general heads, kotany, Chemistry. Geology, Minerals 

 Obituary, Rocks, under each the title of Articles referring thereto are included. 



See also under GEOLOGY. 



Bowen, N. L., melting-point of pot- 

 ash feldspar, 1. 



British Museum of Natural His- 

 tory, publications, 422. 



Brogger, W. C, Eruptivgesteine 

 des Kristianiagebietes, IV, 80. 



Brown, J. S., relation of sea water 

 to ground water along coasts, 

 274- 



C 



Calculus, Vector, Shaw, 501. 



Callixylon, Mid-Devonian, Hy- 

 lander, 315. 



Carnegie Foundation, publications, 



93- 

 Cayuga Lake faulting, errata, 



Long, 420. 

 Chamberlin, T. C, Jones' criticism 



of Chamberlin's theory of mega- 



diastrophism, 253. 

 Chaney, R. W., flora of the Payette 



Formation, 214. 

 Chemical Analysis, Scott, 498. 



— Principles, Noyes and Sherrill, 



73- 

 Chemie, Physikalische, der Zelle, 



etc., Hober, 499. 

 Chemistry of Combustion, Friend, 



414. 



— Congress of Industrial, 252. 



— Inorganic, new volumetric 

 method, Dutoit and Grofet, 413. 



— Organic, Henrich, 414; von 

 Richter, 74. 



— Theoretical, Getman, 499. 



— Women in, 323. 



CHEMISTRY. 



Ammonium chloride, crystal 

 structure, Wyckoff, 469. 



Arsenic, Separation of, Moser 

 and Ehrlich, 413. 



Barium hydroxide, industrial 

 production, 73. 



Beryllium, atomic weight, 322. 



Chlorides containing silver and 

 gold, Wells, 476. 



Cobalt and nickel in vegetables, 

 Bertrand and Mokragnatz, 498. 



Molecular weights, determina- 

 tion, Rast, 323. 



