526 



Monolepis Nuttalliana, 82. 

 Mononyx amplicollis, 284. 

 Montana, notes on the natural history 



of, 33. 

 Mormon cirrhata, 454. 

 Morrison, H. K. Descriptions of new 



Noctuiidae, 131, 209. 

 Morse, Prof. E. S. On the intermedium 



in birds, 221. 

 Molothrus pecoris, 59, 340, 442. 

 Mulgedium pulchellum, 79. 

 Mus niusculus, 42. 

 Musenium divaricatum, 76. 

 Museums, history of development of, 



387. 

 Mustelus, 172. 



canis, 172. 

 Mygale, structure of male palpus, 506. 

 Myiarchus crinitus, 443. 

 Myiodioctes canadensis, 440. 

 minutus, 440. 

 mitratus, 440. 

 pusiilus, 313, 357, 440. 

 Myliobatis, 170. 



Narragansett and Boston Bays, 488. 

 Nauclerus furcatus, 444. 

 Navicula, 182. 

 Negundurn aceroides, 73. 

 Kelson, E. "W. Notes on birds ob- 

 served in Utah, Nevada, and Califor- 

 nia, 338. 

 Nematodes simplex, 376, 379. 



subrufus, 378. 

 Nematopus vicinus, 284. 

 Neoeorys Spraguei, 50. 

 Neolobophora, iJ81. 



bogotensis, 282. 

 Neotoina cinerea, 42. 

 Nettion carolinensis, 447. 



crecca, 453. 

 Nevada, birds of, 338. 

 Newburyport, lead vein in, 200. 



analysis of associated min- 

 erals, 462. 

 New England, Birds of, 436. 

 Niles, Prof. W. H. Physical features 



of Massachusetts, 507. 

 Nisus Cooperi, 444. 



fuscus, 444. 

 Nitidula avara, 375, 378. 

 Nitzchia, 182. 



Noetuidae, new species of, 131, 209. 

 Nuculia Maria, 244. 

 Nunienius borealis, 446 



hudsonicus, 446. 

 longirostris, 67, 348, 446. 

 Nyctale acadica, 444. 



Kichardsoni, 444. 

 Nyctherodius violaceus, 447. 

 Nyctiardea Gardeni, 447. 

 grisea, 343, 352. 

 nivea, 343, 352. 



Oarisma Hylax, 90. 

 Obione argentea, 82. 



canescens, 82. 



confertiflorea, 82. 

 Oceanites oceanica, 450. 

 Ocytes Uncas, 91. 



Odontaspis, 172. 



CEdipodida, new genera of, 467, 478. 

 CEnothera albicaulis, 75. 

 biennis, 75. 

 caespitosa, 75. 

 pirmatifida, 75. 

 serrulata, 75. 

 Officers for 1874-5, 13. 

 Ohio, caves of, 222. 



coal of, 183. 

 Oidemia americana, 448. 

 Omalisus fraternus, 376. 

 Ommatolampis aptera, 273. 



leucoptera, 272. 

 nigroguttata, 273. 

 Oplomus tripustulatus, 283. 

 Oporornis agilis, 440. 



formosus, 451. 

 Opuntia fragilis, 75. 



missouriensis, 75. 

 Orchelimum ni gripes, 459. 



Ortoni, 265. 

 Oreciscus iamaicensis, 447. 

 Oreortyx pictus, 355, 364. 

 Oreoscoptes montanus, 49, 345, 349, 352, 



355. 

 Oropkus, pe7-uvi anus, 260. 

 Ortbocarpus luteus, 80. 

 Orthosia Belangeri, 149. 

 baliola, 148. 

 minuscula, 147. 

 Orthosira, 182. 

 Ortyx virginianus, 445. 

 Osten Sacken, C. K. Monograph of 



the Tabanidae, I, 314. 

 Otus vulgaris, 64, 344. 



TTilsonianus, 64, 344, 444. 

 Ovis montana, 40. 

 Oxybapbus angustifolius, 81. 

 nyctagineus, 81. 

 Oxynoticeras Guibalianuin, 234. 

 Guibaiii, 235. 

 Lotharingum, 235. 

 oxynoturn, 232. 

 OxynotidcB, 230. 

 Oxyops sp., 280. 

 Oxytropis Lambertii, 474. 

 Oyster beds, examination of mud of, 182. 



Pachychoris discrepans, 282. 

 Packard, Dr. A. S., Jr. Gynandro- 



morphic Lepidoptera, 423. 

 Panchlora slgnifera, 280. 

 Pandion carolinensis, 444. 

 Paronychia sessiliflora, 72. 

 Parula americana, 439. 

 Parus atricapillus, 48, 339, 356, 438. 

 hudsonicus, 438. 

 occidentalis, 356. 

 septentrionalis, 48. 

 Passerculus anthiuus, 57. 

 princeps, 441. 

 savanna, 57, 346, 358, 441. 

 Passerella iliaca, 359, 442. 



Townsendii, 359. 

 Patrobus nigricollis, 375. 

 Pediocetes columbianus, 66, 347. 

 phasianellus, 66, 347. 

 Pelecanus erythrorhynchus, 448. 

 fuscus, 448. 



