INDEX. 



613 



Lubbock (J. W.) on the wave-surface in 

 double refraction, 47 ; on the divergence 

 of the numerical coefficients in the lunar 

 theory, 133; on the variation of the ar- 

 bitrary constants in mechanical problems, 

 ti55. 



Luminosity of the ocean, on the, 212; of 

 the human subject after death, on the, 

 420. 



Lunar nutation, determination of the con- 

 stant of, 1 10. 



Lunar theory, on the divergence of the nu- 

 merical coefficients, 168. 



Luxford (G.) on the discovery of Cucuba- 

 lus baccifer in the Isle of Dogs, 93. 



Magnetic contact-breaker, description of a, 

 18. 



Magnetical apparatus, improvements in, 

 380. 



Magnetical observations, places fixed on 

 by the Royal Society for making obser- 

 vations, 347. 



Magnetical Observatory at Dublin, 119. 



Madeira, on the fishes of, 526. 



Magnus (M. ) on the gases contained in the 

 blood, and on respiration, 300. 



Malaguti (M.) on the action of chlorine on 

 aethers, 297 ; on camphoric acid, 297. 



Malcolmson (J. G.) on the great basaltic 

 district of India, 286. 



Mallet (Mr.) on an unobserved structure 

 in certain trap rocks, 106. 



Malt liquors, examination of, 218. 



Marchand ( R. F. ) on a new method of ob- 

 taining chrome alum, 218. 



Martin (Mr.) on the Felis Darwinii, 213; 

 on the proboscis monkey, 592. 



Matteucci (M.), researches relative to the 

 torpedo, 196; on the chemical composi- 

 tion of the electrical apparatus of the tor- 

 pedo, 256 ; on thermo-electric pheno- 

 mena, 295. 



Medusae, luminous, 213. 



Mercury, analysis of double salts of, 235 ; 

 tritiodide of, 27. 



Mesityl, oxide of, 100. 



Metals, on the colours of, 298. 



Meteoric stones, in Brazil, 462. 



Meteorology : — observations, 143, 223, 303, 

 382, 463, 543 ; low temperature of Jan. 

 1838, 302; observations made at Ber- 

 muda in 1836-37,42; observations made 

 in Colombia, between 1820 and 1830, 

 148; meteorology of Tcneiiffe, 291 ; de- 

 scription of a new barometer, 204 ; spe- 

 cimen of a thermometrical diary, 498. 



Meteorological Society, 291, 601. 



Meteorological table : — for Nov. 144; for 

 Dec. 224 ; for Jan. 304 ; for Feb. 384 ; 

 for Mar. 463 ; for Apr. 544. 



Meteors of Nov. 12, 85. 



Mcyen (Prof.) on the progress of vegetable 

 physiology in 1836, 53. 



Milk, sugar of, on its fermentation, 139. 



Middletonite, on, 261. 



Mineral veins, on the phenomena of, 125. 



Mont Blanc, on an optical phenomenon 

 observed at, 122. 



Mora tree of British Guiana, 532. 



Morichini (Prof.), notice of, 280. 



Mosses of Upper Assam, 532 ; on the ex- 

 istence of stomata in mosses, 533. 



Mould, on the formation of, 89. 



Mus, new species of, 443. 



Nautilus, pearly, on the theory of the ac- 

 tion of the siphuncle in the, 503 ; the 

 paper nautilus, 601. 



Needles rendered magnetic by the nerves, 

 223. 



Newbold (Capt.) on the black cotton soil 

 of India, 430. 



Newton's rings, 28, 485. 



Nile, plan for exploring the western branch 

 of the, 543. 



Nitre, its formation in extract of quassia, 

 140 ; new property of, 145. 



Nitric acid, its action on iron, 49 ; its ac- 

 tion on bismuth, 305. 



Noad (H. M.) on the peculiar voltaic con- 

 ditions of iron and bismuth, 48. 



North-west passage, discovery of the, 542. 



Ocean, on the phosphorescence of the, 211. 



Observatory, magnetical, at Dublin, 119. 



Odynerus quadratus and O. bidens, habits 

 of, 17. 



Oil, empyreumatic, 101. 



Ogilby (W.) on the quadrupeds of Austra- 

 lia, 95. 



Optical phenomena observed at Mont 

 Blanc, 122. 



Organic acids, constitution of, 381. 



Organic compounds, method of analysing, 

 31, 232. 



Ornithology: — ground finches, 215; He- 

 mipodius melanogaster, 215; new spe- 

 cies of parrot, 215; new raptorial birds, 

 215; new species of Fissirostral birds, 

 444; the Apleryx, 444; Australian birds, 

 444 ; on the habits of the Vultur aura, 

 447 ; Rhea Darwinii, 450 ; Rhea Ame- 

 ricana, 450; simple process for taking im- 

 pressions from feathers, 451 ; Humming 

 birds, 526 ; new species of Ortyx, 527 ; 

 Podargus stellatus, 527 ; Pteroglossus 

 Gouldii, 528; British wagtail (Mota- 

 cilla Yarrellii) 596, 598 ; Motacilla leu- 

 copsis, 598 ; Corvus nobilis, Ortyx gutta- 

 ta, Thamnophilus fuliginosus, and Den- 

 drocitta rufigaster, 598. 



Osmia bicornis, and O. spinulosa, 18. 



Ostrogradsky (M.) on a singular case of 

 the equilibrium of fluids, remarks on, 

 385. 



Otus brachyotus, on the habits of, 104. 



Owen (R.)» the Wollaston medal awarded 

 to, 433 ; on the dislocation of the tail in 



