384 



Sterna hirundo, 327. 



regia, 327. 

 Stratification of rock-masses, 237. 

 Strix pratinicola, 309, 324. 

 Sturnella magna, 317, 324. 



neglecta, 309, 311, 317, 324. 

 Symphemia semipalmata, 331. 

 Syrnium nebulosum, 314, 324. 



Tackycineta bicolor, 320, 326. 

 Tachyporus jocosus, 272. 

 Tamias dorsalis, 281, 290. 



lateralis, 2 ( J0. 



Pallasi, 281, 290. 



pallidus, 281, 289. 



quadrivittatus, 261, 280, 282, 289. 



striatus, 277, 281. 



Townsendi, 281, 290. 

 Tantalus loculator, 307, 308, 328. 

 Taxodium disticlium, 306. 

 Tecoma radicans, 306. 



stans, 306. 

 Telephorus orlflavus, 273. 

 Telmatodytes palustris, 323. 

 Tephrosia canadaria, 33. 

 falcataria, 32. 

 nigi'oseriata, 32. 

 Tetracis parallelia, 38. 

 Tetragoneura costalis, 360. 

 Thryomanes Bewickii, 308, 309, 310, 323. 

 Tkryothorus ludovicianus, 308, 309, 311, 



323. 

 Traraea Carolina, 361. 

 Tringoides macularius, 324. 

 Trochilus colubris, 318, 327. 

 Troglodytes asdon, 323. 



hyemalis, 321, 323, 328. 

 Tropidonotus erythrogaster, 306. 

 transversus, 306. 

 Woodhousei, 307. 

 Tryngites rufescens, 331. 

 Turdus alicia?, 115, 330. 



auduboni, 115. 



fuscescens, 115, 330. 



Turdus migratorius, 322, 323. 



mustelinus, 115, 320, 325. 

 nanus, 115. 

 Pallasi, 115, 312, 330. 

 silens, 115. 

 Swainsoni, 115, 330. 

 ustulatus, 115. 



Urubitinga aBquinoctialis, 63. 

 anthracina, 63. 

 meridionalis, 63. 

 unicincta, 63. 

 szonura, 62. 



Yireo flavifrons, 312, 318, 320. 

 noveboracensis. 320, 326. 

 olivaceus, 318, 320. 

 philadelphicus, 320. 

 Vireosylvia gilva, 313, 326. 



olivacea, 313, 326. 

 philadelphica, 330. 

 Virginia elegans, 307. 

 Valeria, 307. 

 Vulpes fulvus, 307. 



vh'ginianus, 307. 



Wabash Valley, 304. 



Walker Prizes, award of, 113. 



Waterstox, Rev. K. C, Louis 

 Agassiz and the Humboldt Anni- 

 versary, 225. 



Wells, Samuel. On a simple helios- 

 tat, 376. 



Xantbocephalus icterocephalus, 309, 



323. 

 Xipnasia 366, 369. 



setif er, 369. 

 Xipbogadus, 366. 



Zenaidura carolinensis, 322, 324. 

 Zonotricbia albicolbs, 311, 312, 321, 328. 

 leucophrys, 311, 312, 321, 



