INDEX. 



477 



Hedrick, E. R., Logarithmic Ta- 

 bles, 467. 



Herschel, Macpherson, 395- 



Holm, T., studies in the Cypera- 

 cese, No. XXX, 159. 



Hommel, W., Petrography, 75. 



Hooker, Sir Joseph D., Life by F. 

 O. Bower, 78. 



Hume, G. S., Paleozoic outlier of 

 Lake Timiskaming, 293. 



Idaho, phosphate field, Mansfield, 



53. 

 India, Board of Scientific Advice, 



1918-1919, 81. 



Johnstone, J. H. L., relative activ- 

 ity of radium and uranium, 1. 

 Journal de Physique, 395. 



K 



Katmai, Alaska, volcanic emana- 

 tions, Shipley, 141. 



Krystallformen, Atlas der, Gold- 

 schmidt, 397. 



Krystallographie, Zeitschrift, 472. 



Lake Timiskaming, Paleozoic out- 

 lier, Hume, 293. 



Larsen, A., Oersted's discovery of 

 Electro-magnetism, 1820, 466. 



Larsen, E. S., melanterite and chal- 

 canthite groups, 225. 



Larue, G. R., Animal Biology, 76. 



Light, Animal, Harvey, 474. 



Lipari, rhyolites, Washington, 446. 



Logarithmic, Tables, Hedrick, 467. 



Loomis, F. B., Ticholeptus rusticus 

 and the Oreodonts, 281. 



Lull, R. S., new Tertiary Artio- 

 dactyls, 83; Carboniferous foot- 

 prints, Mass., 234. 



M 



Macpherson, H., Herschel, 395. 



Mansfield, G. R., Triassic and Juras- 

 sic in Idaho, 53. 



Maps, Topographic, Finch, 236. 



Marsh Collections of vertebrates, 

 Lull, 83; Thorpe, 207; Troxell, 

 243, 361, 431. 



Maryland geol. survey, 237. 



Mathematicians, International Con- 

 gress, 79. 



McEwan, E. D., Ordovician of In- 

 diana, 154. 



Melanterite and chalcanthite min- 

 eral groups, Larsen, Glenn, 225. . 



Merrill, G. P., History of American 

 State Geol. Surveys, 395. 



Millikan, R. A., Physics, 394- 



Mineral Deposits, Geology of Non- 

 Metallic, Grabau, 468. 



— Industries of Vermont, 238. 



MINERALS. 



Akermanite-gehlenite system, 131. 

 Chalcanthite, Colorado, 228. 

 Cobalt sulphates, 229. 

 Gehlenite, 131. 

 Leucite, Italy, 33. 

 Melanterite, Colorado, 225. 

 Naumannite, Idaho, 390. 

 Platinum in 1919, 471. 

 Mines, U. S. Bureau of, publica- 

 tions, 470. 

 Molinari, E., Inorganic Chemistry, 

 73- 



N 

 New Mexico, Pecos Valley, Ter- 

 tiary intrusives, Semmes, 415. 

 New Zealand geol. survey, 76. 

 Norwegian Arctic Expedition, 1898- 

 1902, 169, 



O 

 OBITUARY. 



Backhouse, T. W., 82. 

 Blake, J. M., 316. 

 DeCandolle, A. P., 82. 

 Gautier, Armand, 398. 

 Hauron, L. D. du, 474. 

 Iddings, J. P., 316. 

 Pirsson, L. V., 173. 

 Seligmann, G., 172. 

 Stockwell, J. N., 398. 

 Tornquist, S. L., 474. 

 Ohio, geologic map, Bownocker, 



239. 



Ordovician, Madison, Indiana, Mc- 

 Ewan, 154. 



Oreodonts, Loomis, 281. 



Paleogeography, Arldt, 238. 

 Paleontology, Davies, 467. 



— Invertebrate, Woods, 170. 

 Paleozoic diastrophism, Schuchert, 



339- 



— of Lake Timiskaming, Hume, 



293. 

 Pasteur, History of a Mind, Du- 



claux, Smith and Hedges, 80. 

 Peterson, O. A., American Dicera- 



theres, 396. 

 Petrography, Hommel, 75. 

 Petrology, Hawaiian, Powers, 256. 

 Physical Tables, Smithsonian, 



Fowle, 466. 



