INDEX. 



539 



MINERALS— continued. 



Stephanite, Mexico, 244. 

 Thorianite. 521. Tourmaline, New 



York, 128. Tungstite, 805. 

 Uranium, radio-activity, 269. 

 Villiaumite, 347. 



Minerals, Key iov Rock-forming, 

 Johannsen, 599. 



Mining Congress, American, 89. 



Missouri, Shepard on underground 

 waters, Lane, 452. 



Moody, S. E., hydrolysis of ammo- 

 nium molybdate, 77. 



Mowbray, L., tke cakow in Ber- 

 muda, 361. 



Mumper, W. N., Physics, 259. 



N 



Natural History Essays, Eenskaw, 

 160. 



New Jersey, Cretaceous paleontol- 

 ogy, Weller, 152. 



— geol. survey, 82. 



Newman, H.^ Pkysics, 259. 



Newton, H. D., volumetric estima- 

 tion of titanium. 130 ; estimation 

 of iron by potassium permanga- 

 nate, 343. 



New Zealand, geology of tke Coro- 

 mandel region, 526 ; of Parapara 

 subdivision, 83. 



Niagara, Falls of, Spencer, 455. 



Nobel prize in 1905, 165. 



North Carolina, fiskes, Smith, 159. 



North Dakota geol. survey, 457. 



Noyes, W. A., Organic Chemistry, 

 80. 



Nuclei of pure water, bekavior, 

 Barus, 409. 



OBITUARY. 



Austin, P. T., 168. 

 Hall, A., 90. 

 Harrington. B. J., 91. 

 Janssen, P. J. C, 168. 

 Kelvin, Lord, 92. 

 Underwood, L. M., 92. 

 Young, C. A.. 166. 

 Observatory, Allegkeny, publica- 

 tions, 165, 460. 



— Astrophysical, publications, 431. 



— Harvard College, publications. 460. 

 — Mt. Weatker. bulletins, 155, 532. 

 Ohio, ancient finger lakes, Hubbard. 



239. 



— desiccation conglomerates, Hyde. 

 400. 



Ohio terraces. Hubbard, 108. 



Osborn, H. F., Evolution of Mam- 

 malian Molar Teeth, 264. 



Osborne, R. W., esterification of 

 benzoic acid, 39. 



Ostwald's Klassiker, 89, 534. 



Oxygen, positive column, Kirby, 451. 



Paleobotany, see BOTANY. 



Penck, A., Alpen im Eiszeitalter, 84. 



Perkins, H. A., rectification effect 

 in a vacuum tube, 485. 



Perkins, P. B., molecular weight of 

 radium emanation, 461. 



Phelps, I. K. and M. A., esterifica- 

 tion of benzoic acid, 39. 



Phosphorescence by canal rays. 

 Trowbridge, 141. 



Photometry, Liebenthal, 258. 



Physics, Elementary, Newman, 259. 



— Practical, Franklin, Crawford and 

 MacNutt, 258 ; Ferrv and Jones, 

 452. 



— Principles, Gage and Goodspeed, 

 259. 



— Test-book, Mumper, 259. 

 Physiologie, Beitrage zur chemis- 



cken, Hofmeister, 81. 

 Plate L., Probleme der Artbildung. 

 531. 



R 



Radio-active minerals, lithium in, 



McCoy, 346. 

 Radio-activity, atmospheric, Dadou- 



rian, 835. 



— of lead, McLennan, 147. 



— of uranium minerals, Boltwood, 

 269. 



— see Radium, 

 Radiometer for low pressures, 



Dewar, 258. 

 Radium emanation in the atmos- 

 phere, Eve', 147 ; molecular weight 

 of, Perkins, 461 ; water vapor in, 

 Curie, 145, 522. 



— in the earth, Strutt, 346. 



— life of, Boltwood, 493. 



— origin, Hahn, 79 ; Rutherford, 147. 

 Refrigeration, Anderson, 524. 

 Rhode Island, geology of Iron Mine 



Hill, Johnson and Warren, 1. 



Richardson, G. B., Paleozoic forma- 

 tions in Trans-Pecos Texas 474. 



Rochester quadrangle, geologic map, 

 Hartnagel, 154. 



