INDEX TO VOL. XL 



Ajjbot, Dr. S. L. Translation of an 

 account of the capture of a Gorilla, 

 137 ; obituary notice of Dr. Bryant, ou 

 behalf of a special committee, 205. 



Ablabia pratana, 60. 



Acarus scorpioides, 325. 



Achnanthes bi;evii)es, 133. 



Acidalia frigidaria, 43. 



olMlcarla. 43. 



spuraria, 43. 



Acrociuus longimauus, 324. 



Actinocyclus, 77. 



Ehrenbergii, 78. 



Actinoptvchus, 77. 



'- senarius, 78, 133, 439. 



superbus, 78. 



uudulatus, 81. 



Adolias, 150. 



Adze, Hawaiian stone, 73. 



^gialitis, 97. , 



^Imanthes, 382. 



uEschna, 393, 397. 



constricta, 294. 



eremita, 294. 



propinqua, 294. 



vireus, 293, 295. 



Agassiz, a. Description of Salpa Ca- 

 botti Desor, 17 ; on the position of the 

 sandstone of the southern slope of a 

 portion of Keweenaw l*oint, Lake Su- 

 perior, 244. 



Agassiz, Prop. L. Remarks upon the 

 antiquity of man, .304; ou phyllotaxis, 

 315 ; comparison of the Bison and Au- 

 rochs. 316; on the songs of insects, 

 316 ; discovery of a Cetacean new to 

 America. 318: on the age of certain 

 rocks in Scotland, .322; remarks on the 

 Taconic system, .353; on the classitica- 

 tion of the Siluroids, 554. 



Agelena plumbea, 108. 



Agrion, 393. 397. 



cartlenium, 290. 



civile, 290. 



coecum, 290, 293. 



credulum, 290. 



ciiltellatum. 290. 



delixum, 290. 



discolor, 290. 



dominicanum, 291, 295. 



Doubledayi, 290. 



macrogast^r, 291. 



Maria. 290, 293. 



proesectum, 290. 



Kamburii, 291. 



Agrion truncatum, 290. 



tuberculatum, 290. 



vulneratum, 290. 



Agrutis claudestina, 117. 



comparata, 39. 



dissoua, .38. 



fusca. 39. 



li'toralis. 38. 



0/Mh-nsis, 38. 



septentrionalis, 39. 



specinsa, 39. 



telifera, 117. 



inn!jratu!^. .37. 



Wockei, 39. 



Ainos, remarks on, 327, 403. 

 Alaus oculatus, 324, 325. 

 Alcedo alcyon, 95. 



Alewife, former abundance of, 131. 

 Alosa prsestabilis, 125. 



tyrannus, 125. 



Alpine summits of White Mts., Diatoma- 



ceai from, 75. 

 Alterati<ni of By-Laws, 284. 

 Amphipleura pellucida, 339. 

 Amphiprora complexa, 133. 



maxima, 133. 



vitrea, 133. 



Amphitetras ornata, 78, 81. 

 Amphora membranacoa, 133. 



robusta, 133. 



salina, 133. 



Ampullaria, 159. 



Anaitis sororaria, 43. 



Analysis of fossil guano, 392; of meteoric 



iron, 71. 

 Anarta algida, 42. 



amissa, 42. 



■ bic)/cla, 41. 



cordigera, 42. 



cxulis, 39. 



funesta, 42. 



gelata, 40. 



leucocycla, 41. 



melaleuca, 42. 



melanopa, 42, 485. 



n/f/ro-/>mata, 40, 465. 



Richardsoni, 39. 



vidua, 42. 



Anas discors, 97. 



Anatomy and physiology of the ciliary 



muscle in man, 1. 

 Auax Amazili, 291. 



Junius, 291. 



Anchylopera plagosana, 60. 

 Ancylostomum duodenale, 72. 



