472 



INDEX 



CHEMISTRY. 



Iodine pentafluoride, Moissan, 456. 



Lithium silicide, Moissan, 64. 



Manganese, separation from magne- 

 sium, etc., Dietrich and Hassel, 

 456. 



Matter, heatless condition of, Brink- 

 worth and Martin, 304. 



Nitric acid, titrimetric estimation, 

 Phelps, 440. 



Oxygen and hydrogen, vapor-pres- 

 sures of liquid, Travers, Senter 

 and Jaquerod, 311 ; combination, 

 Baker, 383. 



Radium, atomic weight. Curie, 384. 



Eocks in the Nile cataracts, lalack 

 color of, Lortet and Hagounenq, 

 64. 



Silver chabazite and silver aualcite, 

 Steiger, 31. 



Thallium in the thallous state, 

 Thomas, 385. 



Thermochemical constant, Clarke, 

 303. 



Thiocyanates, double and triple. 

 Wells, 384. 



Thiocyatiic acid, iodometric titra- 

 tion, Thiel, 455. 



Uranium, atomic weight, Richards 

 and Merigold, 65. 



Yanadic acid, reduction of, Gooch 

 and Stookey, 369. 

 Clarke, F. W., Elementary Chem- 

 istry, 305. 

 Coleman, A. P., nepheline and other 



syenites in Ontario, 147. 

 Colorado, Silverton quadrangle, 



economic geology of, Ransome, 



390. 

 Connecticut, Barkhamsted, essonite 



and corundum at, Emerson, 234. 



— extent of Newark System, Hobbs, 

 71. 



— ice sheet in Pomperaug vallev, 

 Hobbs, 399. 



— Tungsten mine at Trumbull, 

 Hobbs, 72. 



Cornwall, H. B., greenockite on 

 calcite from Joplin, Missouri, 7. 



Crook, Z. E., electromagnetic alter- 

 nating currents, 133. 



Cross, W., Chemico-mineralogical 

 Classification of Igneous Rocks, 

 461. 



Crystallography, solution of prob- 

 lems in, Renfield, 249. 



Cumings, E. R., variation in the 

 fossil brachiopod, Platystrophia 

 lynx, 9. 



Davis, W. M., terraces of the West- 

 field River, Mass. , 77 ; Elementary 

 Physical Geography, 318. 



Dennis, L. W., Elementary Chem- 

 istry, 305. 



Dewar, J., liquid hydrogen and 

 helium, 305. 



Dirigibles, Les, Andre, 398. 



Dresser, J. A., contribution to the 

 geology of Quebec, 43. 



Drude, P., Theory of Optics, 68. 



Earthquake of 1901 at Inverness, and 



at Carlisle, Davison, 397. 

 Electric conductibility of metals, 



Strutt. 459. 



— discharges through gases, role of 

 self-induction in, Eginitis and de 

 Gramont, 68. 



— displacement, magnetic effect. 

 Whitehead, 109. 



— resistance of glass, quartz, etc., 

 Rood, 161. 



— sparks, influence of electrification 

 of the air on. Lecher, 386. 



— waves, interference, tubes for, 

 Becker, 67. 



magnetic detector for, Marconi, 



386. 



reflection of, Bumstead, 359. 



Electricity, removal of negative from 



the air by rain, Schmauss, 387. 

 Electrolytes, free ions in aqueous 



solutions of, Olsen, 237. 

 Electromagnetic alternating cur- 

 rents. Crook, 133. 

 Electromotive force of ozone, Brand, 



386. 

 Electrostatic tubes, de Nicolaieve, 



386. 

 Emerson, B. K., corundum and a 



graphitic essonite, 234. 

 Emerson, J. S., characteristics of 



Kau, 431. 

 Ethnology, Bureau of American, 



annual report 1901, 470. 

 Evans, N. N., new occurrence of 



native arsenic, 397. 



Farrington, O. C, action of copper 



sulphate upon iron meteorites. 38. 

 Fernald, M. L., relationships of some 



American and Old World birches, 



167. 

 Fisher, C. A., calcite-sand crystal, 



451. 



