GENERAL INDEX. 



651 



r anticipations of the weather, 111 ; meeting of 



the society, 55. 

 Metriorh^nchus, description of, 352. 

 Mica, means of distinguishing it from quartz, 



389. 

 Mecistura vagans. See Bottletit. 

 Migrative instinct, observations on, 131 ; occurs 



among Mammalia and reptiles, 133. 

 Minnows found in the River Don, in Scotland, 



340, 

 Molasses, organic contents of, 237. 

 Muirhen. See Red Grouse. 

 Mom6rdica Elatdrium, irritability in the peri- 

 carps of, 58. 

 Mosasatirus, description of, 347. 

 Motacilla flava, see yellow wagtail ; M. lugubris, 

 distinctions between it and M. alba, 460 j Yar- 

 reRi described, 460. 

 MuHnia figured and described, 375. 

 Museum, Ashmolean, history of, 270 ; Dover, 

 history of, 275 ; Paris, censures upon the 

 management of, by Raspail, 104. 

 Music of snails, explanation of the phenomenon, 



107. 

 Mus asiaticus, Hardwfekii, K6k, rufescens 



(house rat), described, 585. 

 Musteladae wound their prey in the jugular 



vein, 2. 

 Mycetes nlger, quotation from the work of 



Azara on, 451 ; senfculus, habit of, 449. 

 Mytillna. See Mytilus polymorphus. 

 Mytilus polym6rphus, enumeration of syno> 



nymes, 436. 

 Naiades, arrangement of the family, 268. 

 Nassa incrassata occasionally seen without 



varices, 387. 

 Naturalist reviewed, 263. 

 Nautili, fossil, dredged up on the Kentish coast, 



125. 

 Nautilus ziczac described and figured, 533. 

 Nematura figured and described, 217. 

 Nicobar pigeon, remark on its supposed affinity 



to the poultry, 442. 

 Nomenclature, generic, observations on, 249. 



316. 

 Nomenclature, rules for, 173; observations 



on, 169; observations on, by Zetetes,421. 

 Oak, observations upon the purposes to which 



the wood, bark, and fruit is applied, 75. 

 Ocythoe. See Argonaut. 

 Odynerus, characters of the group, 494. 

 Ophiura bracteata and neglecta, 476. 

 O'plopus lae'vipes described, 495 ; record of 



the capture of a British species, 491. 

 Orang, living specimen of, 648. 

 Ornithorhynchus, derivation of the name, 50. 

 Ortolans alive in the London markets, 441. 

 O'smia leucomelana, notice of its capture, 490 ; 



description of its habits, 492. 

 Oxydulous Copper, occurrence in detached 



cubes, 168. . 

 Pachydermata, fossil, temperature of the Paris 



basin deduced from, 15. 

 Palm squirrel, observations upon, 496. 

 Papilio Podalirius, notice relating to its occur- 

 rence in Britian, 333. 

 Paradoxurus, arrangement of the species of 

 the genus, 578, 579 ; Derbyanus, Jourdanii, 

 leucomystax, musangdldes, quinquilineatus 

 Zdbra, 579. 

 Parasites, human, their occurrence on man no 

 absolute proof of their non-existence else- 

 where, 85. 

 Partridge, white, shot near Birmingham, 52. 

 Partridges, when only just hatched, squat if 



alarmed, 6. 

 Pedimana, characters of, 525. 

 Pemphredon lugubris, mandibles of figured, 

 318; remarks upon the type of the genus, 

 170 ; discussion respecting the original type 

 of the genus, 249. 

 Percentage system, objections against its intro- 

 duction, 35. 90: 123. 

 Petrogale penicillatus described, 583. 

 Phenomena, natural examples of, 230. 



Philetairus described, 536.' 

 Phbca platythrix described, 582. •* 



Phytosaurus, description of, 348. 

 Plectrophanes nivalis. See Snowfleck. 

 Plerophasmata, objections to M. Serville's ar- 

 rangement, 144. 

 Plesiosaurus, description of, 345. 

 Pleurosaurus, description of, 290. 

 Plover, golden, manner of moulting, 261. 

 Polyommati, rare occurrence of in the larva 



state noticed, 19. 

 Poly6mmatus Artaxerxes, observations on, 



275. 

 Porphyry, experiments upon the fusion of, ,147. 

 Prdcyon nfvea describad, 580. 

 Proteus, on the habits of, 625. 

 Protosaarus, description of, 292. 

 Ptarmigan, changes of plumage, 261. 

 Pterocles, genus, presumed affinity to the pi- 

 geons, 442. 

 Pteromys albiventer, Leachii, melanbtus, de- 

 scribed, 584. 

 Pteronura Sambachii described, 580. 

 Purple hairstreak. See Thdcla quercus. 

 Purre, difference in the dimension of bill of, 



480. 

 Pyrgbma anglicum, observation upon, 475. 

 Pyrrhula vulgaris, egg of, found fresh laid in 



November, 53. 

 Quadrumana, characters of, 525. 

 Quicklime, useful in the preservation of zoo- 

 logical specimens, 223. 

 Quinary system treated of, 327. 

 Rat, mention of its placing its neck against the 



wall, to avoid the bite of the ferret, 2. 

 Redwing's breeding in Britain, 439. 

 Rhacheosaurus, description of, 289. 

 Rhea Darwinii, previously described, 504. 

 Rhinoceros, three species in the South African 



collection, 333 ; fossil remains of, 125. 

 Ring-tailed glede, instance of the eggs being 



removed by the parent bird, 122. 

 Robin, instance of pugnacity in, 222. 

 Rook, a specimen with white whings noticed, 



52. 

 Rooks, pied, a family of noticed, 167. 

 Rasbres. improperly placed beside the Colura- 



bida?, 329. 

 Ruffs, changes of plumage in, 479. 

 Salix c&prea, section of a piece containing the 

 larva of the lunar hornet sphinx, figured,, 

 21 ; transverse sections, showing the perfo- 

 rations made by the same caterpillar, 22 j 

 economical purposes to which the wood is 

 applied, 2-'. 

 Salmonidas, existence of the migrative impulse 



noticed in the fry, 133. f*~ 



Salmon, observations upon, in relation to spawn- 

 ing, 209. 

 Saurians, fossil, on the structure of, 281. 

 Saurocephalus, description* of, 349. 

 Saurodon, description of, 350. 

 Sciurus palmSrum, see palm squirrel; tristri- 



atus, described, 499. . 

 Sciuroptera fimbriata, Turnbullii, described, 



584. 

 Scissodesma figured and described, 371. 

 Scolopax major, on the plumage of, 479. 

 Sea-Dates. See Lithodomus dactylus. 

 Serpula triquetra and vermicularis, opercula of, 



477. 

 Sheppey, fossil fruits of, method of preserving 



them, 336; list of plants indigenous to, 554. 

 Shooting Stars. See Meteors. 

 Sienite, experiments upon the fusion of, 148. 

 Silvery orange tree, notice of its age, 195. 

 Simia?, characters of, 525. 

 Simiadae, characters of, 525. 

 Slrex, new species described, 630. 

 Snails, eaten by Australian savages, 78 ; musical 

 sounds attributed to, 46 ; upon the reparative 

 powers of the animal, 529. 

 Snake, killed 200 yards from the shore ; obser- 

 vations on the swimming of, 384. 

 Snowfleck, changes of plumage, 263. 



