604: 



INDEX. 



Temperatures, nitrogen -thermome- 

 ter scale, Day and Sosman, 517 ; 

 standard scale of, Adams and 

 Johnston, 534. 



Terrestrial relief forms, Atlas, 163. 



Thorium, magnetic spectra of /3-rays, 

 von Baeyer, etc., 588. 



Thorndike, E. L., Animal Intelli- 

 gence, 70. 



Thorpe, E., Dictionary of Applied 

 Chemistry, 500. 



Todd, D., optical resolution of the 

 Saturnian ring, 152. 



Tohoku Imperial University, Science 

 reports, 597. 



Trisection of angles, Uhler, 506. 



Trotter, A. P., Illumination, 61. 



Twenhofel, W. H., physiography of 

 Newfoundland, 1. 



U 



Uhler, H. S., notes on Maskelyne's 



" trisection of an angle," 506. 

 United States Bureau of Mines, 63. 

 — Geol. Survey, 62, 159, 507. 



Vermont, Sudbury, Ordovician out- 

 lier, Dale, 97. 



Vertebrates, Amer. Permian, Wil- 

 liston, 65, 592. 



— Evolution. Patten, 590 ; Jaekel, 

 592. 



Virginia geol. survey, 594. 



Vortex rings in liquids, Northrup, 

 504. 



W 



Walcott, C. D., Cambro-Ordovician 

 in British Columbia, 508 ; Olenopsis 

 in America, 509 : middle Cambrian 

 Branehiopoda, etc., 509. 



Ward, H. L., estimations of lead, 

 nickel, and zinc, 334 ; oxalate per- 

 manganate process, 423. 



Warren, C. H., ilmenite rocks of St. 

 Urbain, Quebec, 26° 



Washington, H. S., mineral nomen- 

 clature, 137. 



Watson, T. L., association of gold 

 with sillimanite, 241. 



Weinschenk, E., Petrographic Meth- 

 ods, 511. 

 I Wellcome Tropical Eesearch Labo- 

 ratory, fourth report, 294, 597. 

 i Wellisch, E. M., deposit of radium 

 in electric field, 483. 



Wells, H. L., color-effect of isomor- 

 phous mixture, 103. 



West Australia geol. survey, 383. 



West Virginia geol. survev, 381, 

 594. 



Wherry, E. T., carnotite in Penn., 

 574. 



Wieland, G. R., American fossil 

 cycads, Part vi, 73. 



Williston, S. W., Amer. Permian 

 Vertebrates, 65, 592 ; reptilian 

 skulls, 339. 



Wirbeltiere, Jaekel, 592, 



Wisconsin geol. suiwey, 382, 595. 



— inland lakes, Birge and Juday, 71. 



Wood, R. W., Physical Optics, 61. 



Wright, F. E., Petrographic-Micro- 

 scopic Eesearch, 512. 



Writing, Technical, Earle, 386. 



Zerfallprozesse in der Natur, Engler, 

 590. 



