AUTHOR INDEX 



671 



ObERHOlsER, Harry C. *Subspecific 

 intergradation in vertebrate zoology, 

 the criterion of. 200. 



— • — *vSumatra, birds collected by W. 

 L. Abbott on Pulo Taya. 495. 



*Swan Lake, Nicollet County, 



Minnesota, as breeding ground for 

 water- fowl. 19. 



*Tambelan Islands, south China 



Sea, birds of. 495. 



*Tanagers, scarlet and Louisiana, 



migration of. 325. 



- *Tanagers, summer and hepatic, 

 migration of. 201. 



*Toxastoma redivivtim, revision of 



races of. 19. 



*Washington city dooryard, birds 



of. 496. 



*Washington region [Bird obser- 

 vations], 554; [October-November, 

 191 7], 325; [Winter bird records], 



413- 



*Waterfowl, Swan Lake, Nicollet 



County, Minnesota, as breeding 

 ground for. 19. 



*Wrens of the genus Nannus, 



notes on. 496. 



*Zo6logy, vertebrate, criterion of 



subspecific intergradation in. 200. 



OvERBECK, R. M. *Geology and min- 

 eral resources of west coast of 

 Chichagof Island, Alaska. 632. 



Palmer, Harold S. *New graphic 

 method for determining the depth 

 and thickness of strata and the pro- 

 jection of dip. 228. 



Palmer, T. S. fBison, number of, in 

 North America. 356. 



^Rhinochitus jubatus. 356. 



tThe discoverer of the toothed 



birds of Kansas. 657. 



jThe Proceedings [of the Biolog- 

 ical Society]. 659. 



Palmer, William. fOccurrence of the 

 wood tortoise. 656. 



Pardee, J. T. *Geology and mineral 

 deposits of the Colville Indian Res- 

 ervation, Washington. 315. 



Pardee, J. T. *Manganese deposits in 

 Madison County, Montana. 48. 



— — fManganese deposits of the north- 

 western States. 385. 



Peters. C. G. Interferometer, use of 

 the, in measurement of small or 

 differential dilatations. 281. 



PhalEn, W. C. *Salt resources of the 

 United States. 600. 



Pierce, W. DwighT. *Medical ento- 

 mology a vital factor in prosecution 

 of the war. 106. 



*Rhina and Magdalis, the case of 



the genera. 201. 



*Strepsipteras, comparative 



morphology of order, with records 

 and descriptions of insects. 105. 



Piper, C. V. *Rhizoctonia in lawns and 

 pastures. 329. 



PiTTiER, H. Chicle, origin of, with de- 

 scriptions of two new species of 

 Achras. 431. 



POPENOE, Wilson. fGuatemala, agri- 

 cultural explorations in. 559. 



POSNJAK, EuGEN. Bucher cyanide pro- 

 cess for fixation of nitrogen. 28. 



*Hydrated ferric oxides. 628. 



*Iron-hydroxide minerals. 108. 



Power, Frederick B. *Odorous prin- 

 ciples of plants, distribution and 

 characters of. 379. 



PtTRDUE, A. H. *Asphalt deposits and 

 oil conditions in southwestern Ar- 

 kansas. 104. 



Rankin, G. A. *Ternary system MgO- 

 AhOa-SiOj, the. 46. 



Rawdon, Henry S. *Steel, the micro- 

 scopical features of "flaky." 286. 



Reinicker, C. E. *To1uo1 recovery. 



203- 



Riley, J. H. *Birds, annotated cata- 

 logue of collections made by Cop- 

 ley Amory, Jr., in Siberia. 326. 



— — *Birds, six new, from Celebes and 

 Java. 499. 



*Bullfinch, new, from China. 19. 



*Celebes, two new genera and 



eight new birds from. 413. 



