LOND. AND KDIN. PHILOSOPHICAL MAGAZINE, 1832 — 1838. 41 



the orbits of comets, on, vii. 7, 123, 

 203, 280. 



Oleon, V. 153. 



Olivile, analysis of, iii. 381. 



Oolitic formations of Gloucestershire, sur- 

 vey of, ii. 300. 



Ophthalmia, purulent, viii. 65. 



Opium, substances contained in, ii. 153 ; 

 new substance in, iv. 77 ; detection of, 

 vi. 158 ; new alkali in, viii. 44-1 ; che- 

 mical history of, xi. 335. 



Optical experiment, viii. 168; optical 

 structure of tlie crystalline lenses of 

 animals, viii. 193 ; illusion, on a new 

 instrument of, iv. 36 ; pha^nomena 

 seen in Switzerland, i. 329 ; xii. 122 ; 

 phffinoraenon, peculiar, v. 373. 



properties of oxalate of chromium 



and potash, vii. 436 ; science, facts re- 

 lating to, iv. 112, 289 ; ix. 1, 401 ; pro- 

 perties of chabasie, ix. 166; phaeno- 

 mena of certain crystals, ix. 288 ; x. 

 218 ; theory of crystals, Fresnel's ana- 

 lytical reduction of, xi. 462. 



Optics: — on the undulations excited in 

 the retina by luminous points and 

 lines, i. 169 ; on a new photometer by 

 comparison, i. 174; on the action of 

 the brain on vision, i. 249. 



and perspective, new instrument as 



a means of instruction in, iii. 464. 



Orang Outang, frequent deficiency of the 

 ungueal phalanx in the, vii. 72. 



Orang-outangs, specific distinctions of 

 the, X. 295. 



Organ, enharmonic, vii. 366. 



Organic acids, constitution of, xii. 381 ; 

 on a new, xi. 564. 



chemistry, researches in,x. 45, 116. 



compounds, a new force acting in 



the combinations of, x. 490; method 

 of analvsing, xii. 31, 232. 



remains, vii. 81, 174, 182, 221, 278, 



374; viii. 30, 561, 576; ix. 349, 386, 

 462,490,496; x. 4, 137,402. 



Ornithology, ix. 66, 138, 227, 503, 511 ; 

 new species of Ortyx, x. 287 ; xii. 527; 

 two new species of birds from New 

 South Wales, x. 287, 306 ; rare birds in 

 the vicinity of Scarborough, x. 287 ; 

 three-quarter-bred pheasants, x. 292 ; 

 birds from Swan River, x. 293 ; new 

 genus in the group of wTcns, x. 295 ; 

 list of birds noticed at Smyrna in the 

 winter of 1835-6, x. 301 ; habits of the 

 vulture, X. 479; ground finches, xii. 

 215 ; new species of parrot, xii. 215 ; 

 new raptorial birds, xii. 215 ; new Fis- 

 sirostal birds, xii. 444 ; habits of the 

 Vultur aura, xii. 447 ; Rhea Darwinii, 

 xii. 450 ; simple process for taking im- 



pressions from feathers, xii. 451 ; 

 Humming birds, xii. 526 ; British wag- 

 tail (Motacilla Yarrellii,) xii. 596. 



Ornithorhynchus paradoxus, on the mam- 

 mary glands of the, i. 384 ; iii. 60, 

 301 ; abdominal glands of, iv. 54 ; on 

 the young of, v. 235 ; the ova of, vi. 

 60 ; natural history and habits of, vi. 

 307. 



Orobanche, on the aflSnities of, xi. 409. 



Osborne (Dr.) on the etFects of cold on 

 the himian body, and on a mode of 

 measuring refrigeration, viii. 59. 



Osier (Mr.) on a new registering anemo- 

 meter and rain gauge, xi. 476. 



Osmia biconiis, and 0. spinulosa, xii. 

 18. 



Osmium, its separation from iridium, iv. 

 155 ; preparation of, v. 314 ; iridium, 

 and platinum, triple combinations of, 

 ix. 232. 



Osmiridium, on, v. 101 ; analysis of, vi. 

 238. 



Osteology, human, vi. 57; of the orang 

 and chimpanzee, vi. 457. 



Ostrogradsky (M.) on a singular case of 

 the equilibrium of fluids, remarks on, 

 xii. 385. 



Otter, Irish, vi. 229 ; osteology of the, 

 ix. 512. 



Otus brachyotus, habits of, xii. 104. 



Oude, royal observatory of, iv. 158. 



Ovaries in the human species, on the, vii. 

 209. 



Owen (R.) on the mammary glands of 

 the Ornithorj'nchus, iii. 14 ; reply to, 

 iv. 54 ; anatomy of the Terebratula, 

 &c., iv. 302 ; on the kangaroo, iv. 304, 

 438 ; on the crania of the lion and 

 tiger, iv. 454 ; on the anatomy of the 

 Touraco, iv. 456 ; anatomy of the Ca- 

 lyptraeida;, v. 72 ; on the structure of 

 the heart of the Perennibranchiate Am- 

 phibia, V. 150; on the young and ova 

 of the Ornithorhynchus paradoxus, v. 

 235 ; vi. 60 ; description of a recent 

 Clavagella, vi. 230 ; on a new species 

 of Entozoon, vi. 452; anatomy of 

 Linguatula Taenioides, vi. 450 ; osteo- 

 logy of the orang and chimpanzee, vi. 

 457; dissection of a Dasyurus, vii. 

 154 ; anatomy of the Pelican, vii. 154 ; 

 on some Cephalopoda, ix. 298 ; on the 

 morbid appearances observed in dis- 

 secting the chimpanzee, ix. 388 ; on 

 the anatomy of the wombat, ix. 504 ; 

 on the brain of marsupial animals, x. 

 222 ; on the specific distinctions of the 

 orangs, x. 295 ; description of two En- 

 tozoa in the stomach of the tiger, xi. 

 128; on the cranium of the Toxodoi\ 



