INDEX. 



481 



Lee, T. H., ferrazite, 353. 



Lewis, W. C. McC, Physical Chem- 

 istry, 160. 



Light, scattering by solids, Strutt, 

 392. 



Lillie, F. R., Fertilization, 162. 



M 



Manganese minerals, San Jose, 

 Calif., Rogers, 443. 



Maury, C. J., Porto Rican Tertiary 

 formations, 209. 



McLaughlin, H. M., Qualitative 

 Analysis, 469. 



Merriam, J. C, mammalian fauna 

 of the Mohave Desert, 399. 



Merwin, H. E., ternary system, 

 CaO-MgO-Si0 2 , 81; wollastonite 

 and the ternary system, 165. 



Meserve, P. W., Champlain sub- 

 mergence on Maine Coast, 207. 



MINERALS. 



Barite, Calif., 443. 



Cacoclasite, Quebec, 440. 



Calcite, Japan, 124. 



Cocinerite, Mexico, 206. 



Ferrazite (?), 353- 



Ganophyllite, Calif., 443. 



Hausmannite, Calif., 443. 



Kaolinite, 353- 



Psilomelane, Calif., 443. 



Pyrochroite, Calif., 443. 



Rhodochrosite, Calif., 443. 



Sphalerite, Japan, 124. 



Tephroite, Calif., 443. 



Torbernite, 195. 



Wavellite, 353. 



Wollastonite and the ternary 

 system, 165. 



Zincblende, Japan, 124. 

 Mines, U. S. Bureau of, 77. 

 Mohave Desert, Tertiary Mamma- 

 lian faunas, Merriam, 399. 

 Morse, E. S., living lamellibranchs 



of New England, 477. 



N 



National Research Council, 163. 

 , Nature Study, Biological, Downing, 

 162. 



Nevada, genesis of ores at Tono- 

 pah, Bastin and Laney, 246. 



New Zealand, Cretaceous and Ter- 

 tiary fish-remains, Chapman, 475. 



— Institute of Science, 1919, 474. 



North Carolina geol. survey, 78. 



OBITUARY. 



Barrell, J., 251. 

 Becker, G. J., 242. 

 Braun, F., 402. 



Choffat, M. P., 250. 



Farlow, W. G., 80. 



Haeckel, E. H., 250. 



Hitchcock, C. H., 478. 



Hopkins, C. G., 478. 



Rayleigh, Lord, 249. 



Strutt, J. W., 249. 



Trail, J. W. H., 478. 

 O'Connell, M., costae in the peri- 



sphinctinse, 450. 

 Oklahoma, Hogshooter gas sand, 



Berger, 189. 



Pearson's method for arsenic de- 

 termination, 391. 



Pennsylvania, Middle Ordovician, 

 Field, 403. 



Physics, Molecular, Crowther, 473. 



Polarization surface, Jentzsch- 

 Grafe, 472. 



Porto Rico, Tertiary formations of, 

 Maury, 209. 



Pribilof. Islands, geological notes 

 on, Hanna, 216. 



Prickly Pear, Australia, Alexander, 

 475- 



R 



Radiation constants, Henning, 470. 



Radioscopic fluorescent screens, 

 Roubertie and Nemirovsky, 392. 



Raman, C. V., mechanical theory of 

 bowed strings, 74. 



Richter's Organic Chemistry, Spiel- 

 mann, 469. 



Ridgway, R., Birds of North Amer- 

 ica, 402. 



Rocks, Chemical Analyses, Wash- 

 ington, 161. 



— foliation and metamorphism, 

 Bonney, 477. 



Rogers, A. F., manganese minerals, 

 San Jose, Calif., 443. 



Schuchert, C, obituary notice of 

 J. Barrell, 251. 



Scott, W. W., Chemical Analysis, 

 70. 



Sellards, E. H., Comanchean for- 

 mation under Florida, 13. 



Shore Processes, etc., Johnson, 395. 



Smith, G. McP., Quantitative Chem- 

 ical Analysis, 468. 



Spectra, Origin, Thompson, 70. 



Tactite, Hess, 377. 



Ternary system, CaO-MgO-Si0 2 , 



Ferguson and Merwin, 81, 165. 

 Test,. L. A., Qualitative Analysis, 



469. 



