'04 



GENERAL INDEX. 



[28 



Hutchins, C. C, absorption of 



thin films, 34, 274; quartz 



spectrograph, 36, 328. 

 Hyde, J. E., absence of soil bed 



at base of Pennsylvanian of 



Ohio, 31, 557. 

 Hydraulics, Hughes, 32, 401. 

 Hydrodynamics, Villamil, 35, 327. 

 Hydrogen and nitrogen, liquid, 



properties, Augustin, 39, 603. 

 Hydrostatics, Parker, 34, 92. 

 Hygiene, Principles, Bergey, 35, 



119. 



I 



Ibbotson, F., Analysis of Non- 

 Ferrous Metals, 40, 658. 



Ice age in North America, 

 Wright, 32, 70. 



Ice in the Arctic seas, Hansen, 

 33, 382. 



— structure, studies on, von En- 

 geln, 40, 449. 



Ichikawa, S., etched figures of 

 Japanese quartz, 39, 455. 



Iddings, J. P., Rock Minerals, 32, 

 399; Igneous Rocks, 36, 571; 

 Volcanism, 39, 318. 



Ignition, Magneto and Electric, 

 Hibbert, 35, 104. 



Illinois Coal Mining Investiga- 

 tions, 40, 217. 



— geol. survey, see Geological 

 Reports. 



— new Paleozoic insects, Hand- 

 lirsch, 31, 297, 353. 



— oil fields, 1910, Blatchley, 31, 

 335- 



— State Museum of Natural His- 

 tory, 34, 95- 



— Waters of, chemical survey, 

 Bartow, 36, 90. 



Illumination, Trotter, 33, 61. 

 Immunity, Manual of, Fraser, 35, 



India, Board of Scientific Advice, 

 report, 1909-1910, 32, 328; 1912- 

 1913, 38, 112; 1913-1914, 39, 685. 



Indian Languages, Boas, 32, 82. 



Indiana geol. survey, 31, 333. 



Indians of So. New England, 

 Craniometry, Knight and Har- 

 ris, 40, 667. 



Indicatrix, optical, Weight, 35, 

 I33-. 



Infection and Resistance, Zinsser, 

 39, 325- 



Insect, Life of, Fabre, 33, 598. 



Insect, Tertiary fungus gnat, 



Johannsen, 34, 140. 

 Insects, Injurious, Herrick, 39, 



323- 



— and Man, Ealand, 40, 221. 



— new Paleozoic from Illinois, 

 Handlirsch, 31, 297, 353. 



Interest, Theory of, Hoag, 38, 

 114. 



Interference fringes, resolution, 

 Barus, 35, 308. 



Interferometer, displacement, Ba- 

 rus, 33, 109; 37, 65; use of com- 

 pensators, Barus, 40, 299. 



— and horizontal pendulum, Ba- 

 rus, 37, 50i. 



Interferometry of air, Barus, 34, 

 101. 



Iodine, new fluorescence spec- 

 trum, McLennan, 36, 418. 



Ion, isolation of an, Millikan, 31, 

 570. 



Ionium, spectrum of, Russell and 

 Rossi, 35, 323. 



Ionization of atmosphere by ra- 

 dio-active matter, Eve, 31, 148. 



— columnar, Wellisch and Wood- 

 row, 36, 214. 



— constants, Scudder, 37, 558. 



— currents, effect of a magnetic 

 field, Duane, 35, 121. 



— in gases and vapors, Barss, 34, 

 229. 



— of gases, Lyman. 34, 400; by 

 a-particles from polonium, Tay- 

 lor^ 31, 249. 



Ionizing particles, paths through 



a gas, Wilson, 32, 470. 

 Ions in Aqueous Solutions, Com- 



olex, Jaques, 38, 480. 



— mobilities in air, Wellisch, 39, 

 583. 



— recombination, Plimpton, 35, 



39- 

 Iowa geol. survey, see Geological 



Reports. 

 I — weed flora, Pammel, 38, 104. 

 Iron, mineral sulphides of, Allen, 



Crenshaw and Johnston, 33, 



169; crystallographic study, 



Larsen, 33, 169. 



— spectrum, wave-lengths of, 

 Eversheim, 33, 283. 



Isostasy, Hayford, 35, 196; Hay- 

 ford and Bowie, 34, 92. 



— in India, Crosthwait, 35, 197. 

 Italian Seas, publication of Com- 



I mission on, 31, 581; 36, 88. 



