INDEX. 



CHEMISTRY-cont. 



Lead from Ceylon thorite, Soddy, 



601. 

 Magnesium, separation from lithi- 

 um, Dinwiddie, 662. 

 Mercuric oxide for standardizing 

 volumetric solutions, Abelmann, 

 677. 

 Nitrogen, fixation of atmospheric, 



Landis, 676. 

 Potash from feldspar, Cushman and 



Coggeshall, 311. 

 Rare Earths, Levy, 312. 

 Sodium carbonate, molecular 

 weight, Richards and Hoover, 

 213. 

 — sulphate, molecular weight, 



Richards and Hoover, 213. 

 Thorium-D, volatility, Wood, 218. 

 Tin, antimony, etc., analysis of 



alloys, Stief, 602. 

 Tungsten and molybdenum, sepa- 

 ration, Marbaker, 214. 

 Vanadium, pentavalent, estimation, 



Oberhelman. 530. 

 Water, qualitative test, Weaver, 312. 

 Chlorophyll, absorption spectrum, 



Van Gulik, 604. 

 Cline, J. H., extrusive basalt of Cam- 

 brian of Virginia, 665. 

 Coast and Geodetic Survey, U. S., 



225, 486. 

 Commerce, Secretary of, annual re- 

 port, 225. 

 Connecticut geol. survey, 318. 

 Cook, C. W., datolite, Great Notch, 



New Jersey, 642. 

 Corals, development of structure, 



Brown, 535. 

 Cross, W., petrographic classifica- 

 tion, 657. 

 Crowther, J. A., Molecular Physics, 



314. 

 Crystallization of silicate liquids, 



Bowen, 175. 

 Crystals, growing, Blake, 567. 

 — structure shown by X-Rays, Bragg, 



678. 

 Culler, J. A., General Physics, 315. 

 Cushing, H. P., age of igneous rocks 

 of Adirondacks, 288. 



Dana, James Dwight, lectures com- 

 memorating Centenary, 605. 



Danish Meteorological Institute, pub- 

 lications, 682. 



Davis, J. W., meteorites of Bren- 

 ham, Kansas, 609. 



Derby, O. A., stem structure of Tietea 

 singularis, 251. 



Dew-Ponds, Martin, 683. 



Dinwiddie, J. G., separation of mag- 

 nesium, 662. 



Disks, metallic, repulsion of, Barus, 

 93. 



Dispersion experiment, Thompson, 

 218. 



Drushel, W. A., hydrochloric acid 

 in estimation of organic nitrogen, 

 398 ; hydrolysis of ethyl hydracry- 

 late, 113. 



Earths, Rare, Levy, 312. 



Edelman, P. E., Experiments, 128. 



Egypt, amethysts in, 483. 



Electrical measurements, Smith, 127. 



Electricity for the Farm, Anderson, 

 680. 



— and Magnetism. Franklin and 

 MacNutt, 314, 480 ; Nipher, 219. 



Elektrische Spektralanalyse chem- 

 ischer Atome, Stark, 480. 



Embryology, Heape, 485. 



Emmons, S. F., Memorial Fellow- 

 ship, 229. 



Evolution, Dynamic, Redneld, 324. 



Feeblemindedness, Goddard, 229. 

 Field, R. M., Roentgen ray, use in 



paleontology, 543. 

 Findlay, A., Physical Chemistry, 678. 

 Finland, petrology of the Orijarvi 



region, Eskola, 221. 

 Florida geol. survey, 681. 

 Food Industries, Vulte and Vander- 



bilt, 136. 

 — Products, Bailey, 136. 

 Foods, Wardall and White, 136. 

 Foote, W. M., new meteoric iron 



from Sams Valley, Oregon, 80. 

 Ford, W. E., footeiteand connellite, 



670. 

 Fossils, Study of, Shimer, 322. 

 Franklin, W. S., Electricity and 



Magnetism, 314, 480. 



Gaede, W., diffusion of gases through 



mercury vapor, 477. 

 Gardner, J. A., Tertiary faunas of 



Yorktown and Duplin Formations, 



305. 

 Gases, diffusion through mercury 



vapor, Gaede, 477. 



