

£ *tO e l 



GENERAL INDEX. 



Acanthode'rus scabrbsus, supposed to be a 

 larva only, 145. 



Achatlna clavSta described, 487. 



Acherontia A'tropos, erratic habits of, 137. 



Actinia?, observations on the habits of, 474. 



Aeolodon, description of, 287. 



Africa, expedition into the interior of, 98 ; enu- 

 meration of the objects in natural history 

 collected by the exploring party, 102. 



Alcyonium digitatum, description of, 475. 



Aluco stridula, changes of plumage, 306. 



Aly'ssum calycinum, sudden appearance of in a 

 particular locality, 447. 



Ancistrocerus, characters of the group 49i. 



Anemonal curves, observations on, 211. 



Animal life, compared with vegetable, 28. 



Andstoma (new gen is in entom.), 143; A. aus- 

 tralasiae figured and described,143 ; A.Hdrbstii 

 figured, 144 ; observations upon, 485. 



Antennae of insects, observations on, 257. 



Apes, fossil remains of, 437. 



Argonaut, experiments of Mrs. Power upon the 

 shell and eggs of, detailed, 394 ; description of 

 the Octopus when just hatched, 395; obser. 

 vations of Mr. Smith upon the animal and its 

 shell, 396; opinion of Mr. Gray respecting 

 the nucleus of the shell, 39/ ; experiments of 

 Captain Rang upon the shell, 397; position 

 of the Ocythoe with respect to the shell, 398; 

 description of the manner in which the Ocy- 

 thoe crowls along the bottom of the sea, 399; 

 observations of Mr. Cranche upon, 530 ; ob- 

 servations upon fractured specimens repaired 

 with true shell, 527 ; on the parasitic nature 

 of the animal, 247. 



Armadillo, specimen stolen from the Zoological 

 Gardens, 434. 



Ath\lia centifdlia?, subject of a prize essay, 547. 



Atiactodon elegans figured and described, 

 219. 



Aurora, notices of, 221. 633. 635. 637. 



Ballard Head, geological observations upon the 

 chalk of, 414. 



Basalt, experiments upon the fusion of, 147. 



Bear, tossil remains of, 125. 



Bees, migrative impulse displayed, 134. 



Belemnita-Madrepora, 161. 



Bettongia penicillata, rufescens, setbsus, de- 

 scribed, 5fc4. 



Betula alba, observation upon, 447. 



Bimana, characters of, 525. 



Birds, genera and species of indicated by their 

 nests, 4; late tinging of, 53; list of those 

 found in Devonshire, 113 ; list of the rarer 

 species killed in Suffolk and the borders of 

 Norfolk and Essex, 116. 



Black Jack caterpillar. See Athalia centifbliae. 



Black-throated loon, changes of plumage, 301. 



Blue Skate, capture of an immense specimen, 

 435. 



Bus brachyceros described, 587. 



Botanical specimens, preservation of from in- 

 sects, 311. 



Bottletit, common, observations on the habits 

 of, 199 ; figured and described, 204 ; account 

 of a brood reared in confinement, 205. 



Bramble, common, nests of the O'smia leuco- 

 mtlana occurring in, 491. 



Bramblefinch, changes of plumage noticed, 132. 



Brady, Captain Samuel, history and exploits, 

 158. 



Bridlington tertiary bed, notice of, 504. 



Buccinum undatum, fact relative to the en. 



largement of its eggs, 247. 

 Calamdphilus biarmicus, variation of plumage, 



Campontia erucif>rmis, 279. 



Canary, power of imitating the human voice, 

 548. 



Cards chrysurus (fulvous-tailed dog) described, 

 577. 



CSnis procyonoides (raccoon-faced dog) de- 

 scribed, 578. 



Capercailzie, formerly known in Scotland, 

 119. 



Carch^rias megalodon, occurrence of the fossil 

 teeth in the crag, 225. 



Cassida obsoldta, remarks relating to, £76. 



Cassis, distinctions between it and Cypraecassis, 

 214; testiculus, animal of, figured and de- 

 scribed, 472. 



Cat captures a swallow by feigning death, 5 ; 

 instance of its sagacity in discovering its 

 home, 133. 



Centdnus variegStus described, 581. 



Chalk, sections of, on the Dorsetshire coast. 

 417. 



Chaetura pelasgica, limited geographical range, 



Chaffinch, changes of plumage noticed, 132. 



Chaunonbtus SaWnii described, 487. 



Cheiropoda, characters of, 525. 



Chimpanzee, its innate dread of the large Fdles, 

 quoted in relation to instinct, 2. 



Ciiiton, fossil, described, 162. 



Cinnabar, notice of a large specimen, 157. 



Circus cinerjiceus, changes of plumage, 302. 



Colour, on the changes of in the fur of Mam- 

 malians and the feathers of birds, 259. 



Columbidae improperly placed beside the Ra- 

 sbres, 329. 



Columbus glacftlis, changes of plumage, 306. 



Conepatus Humboldtii described, 581. 



Congdria. See Mytilus polym6rphus. 



Corrosive solution, valuable in the preservation 

 of botanical specimen., 311. 



C6rvus Cornix, occurrence of black varieties, 81 ; 

 its pairing with the black crow, 82. 



Cows, statistics relating to the births of the 

 sexes, 84. 



Crag, fossils of, 35. 90. 218. 225. 



Crocodile, fossil, figured, 532. 



Crossbill, notes on the habits of, 164 ; remark- 

 able dissimilarity in the plumage, 165. 



Crow, carrion, on the habits of, as observed in 

 Scotland, 118. 



Crow, Royston, on the habits of, as observed in 

 Scotland, 118. 



Cubla, observations upon, 488. 



Cuckoo, observation upon, 554. 



Curruca cinerea. See Whitethroat. 



Cylindrodes (new genus in entom ) 141 ; Camp . 

 bellii figured and described, 142. 



Cvndgale Bennettii described, 579. 



Cynthia cardui, extensive geographical range, 

 137. 



Cypraecassis, characters of the genus, 211; dis- 

 tinctions between it and Cyprae\i, 215 ; notice 

 of the habits of the animal, 216 ; additional 

 observations upon, 431 ; additional remarks 

 by M. Stutchbury, 470; objections to the 

 admission of the genus, 367. 387. 



Death, simulation of, remarks upon, 508. 



Deposits, semi-tertiary, 161. 



