ITTOEX TO VOLUME XXVIL* 



Abstammungslehre, Steinmann, 341. 



Academy, National, meeting at 

 Washington, 418. 



Adams, C. F., Physics, 339. 



Adirondacks, ice-movement in 

 Southwestern, Miller, 289. 



Africa, diamonds in German South- 

 western, 489. 

 — Flora of, Thonner, 344. 



Alaska, Yakutat, coastal plain of, 

 Blackwelder, 459. 



Algebra, Milne, 272. 



Allegheny Observatory, publica- 

 tions, 270, 420. 



Allen, E. T., diopside, calcium and 

 magnesium metasilicates, 1. 



Alpen im Eiszeitalter, Penck and 

 Bruckner, 341. 



Aluminum cell as a condenser. Mod- 

 zelewski, 338. 



Andrews, L. W., determination of 

 arsenic, 316. 



Animal Romances, Renshaw, 193. 



Antarctic Expedition, National, 271. 



Arkansas, Pleistocene bone deposit, 

 93. 



Ashman, G. C, radio-activity of 

 thorium, 65. 



Association, American, meeting at 

 Baltimore, 100. 



Astronomer's Wife, Hall, 493. 



Astronomy, Spherical, Ball, 270. 



Atmospheric electricity, observa- 

 tions in, Dike, 197. 



B 



Babbitt, J. B., Physical History of 



the Earth, 91. 

 Ball, R., Astronomy, 270. 

 Barus, C, coronas with mercury 



light, 73 ; absence of polarization 



in artificial fogs, 402. 

 Bateson, W., Mendel's Principles of 



Heredity, 491. 

 Bauer, L. A., Magnetic Tables and 



Charts of the U. S., 263. 

 Bayliss, W. B., Nature of Enzyme 



Action, 100. 

 Beyer, F. B., electrolytic estimation 



of lead and manganese, 59. 



Blackwelder, E., Yakutat coastal 



plain of Alaska, 459. 

 Bosworth, R. S., determination of 



silver as chromate, 241 ; iodomet- 



ric estimation of silver, 302. 

 Botanical Station, Harvard, in 



Cuba, 94. 



BOTANY and BOTANICAL 

 WORKS. 



Agriculture of the Dutch East 



Indies, 192. 

 Bliitenpnanzen Afrikas, Thonner, 



344. 

 Botanist on the Amazon and Andes, 



Spruce and Wallace, 266. 

 Botany, mechanical problems, Sch- 

 wendener and Holtermann, 345. 

 Clearing and mounting agent, 96. 

 Flora, Forest, of New South Wales, 



Maiden, 191, 418. 

 Flower Pollination, Knuth and 



Davis, 96. 

 Plant Study, Meier, 345. 

 Trees, Ward, 491. 

 Bradley, W. M., composition of 



warwickite, 179. 

 British Guiana, Gold Fields of, Har- 

 rison, 409. 

 British Museum, Catalogue, 492. 

 Brooklyn Institute of Science, 420. 

 Browning, P. E., Rarer Elements, 

 262 ; estimation of thallium, 379. 

 Bruckner, E., die Alpen im Eis- 

 zeitalter, 341. 

 Bush, K. J., notes on the family 

 Pyramidellidee, 475. 



C. 



California earthquake of 1906, Gil- 

 bert, 48. 



Canada geol. survey, 87. 



Canal rays, see Rays. 



Carnegie Foundation, 3d Ann. Re- 

 port, Pritchett, 346. 



Carnegie Institution of Washington, 

 publications, 267, 347. 



Chemical Analysis, Qualitative, 

 Tower, 486. 



* This Index contains the general heads. Botany, Chemistry (incl.chem. physics), 

 Geology, Minerals, Obituary, Rocks, Zoology, and under each the titles of Articles 

 referring thereto are mentioned. 



