734 



INDEX. 



attraction of the Himalaya moun- 

 tains, &c., 493. 



Pratt, (J. H.) on the influence of the ocean 

 on the plumb-line in India, 597. 



-, postscript to a paper on the deflec- 

 tion of the plumb-line in India, &c., 

 701. 



Pression, limites de la, dans les machines 

 travaillant a la detente, &c., 110. 



Pterodactylus, 703. 



Pterosauria, vertebral character of, 703. 



Pullen (Capt.), letter on deep-sea sound- 

 ings, 189. 



Quadric function, automorphic linear 

 transformation of a bipartite, 101. 



Quantics, fourth memoir on, 165 ; fifth 

 memoir, 166 ; sixth memoir, 589. 



Quinidin and quinicine, 5. 



Radcliffe (C. B.) on muscular action 

 from an electrical point of view, 690. 



Eankine (W. J. M.) on the thermo- 

 dynamic theory of steam-engines with 

 dry saturated steam, and its applica- 

 tion to practice, 626. 



Rays, influence of coloured, on the nu- 

 trition of animals, 644. 



Refraction of light, influence of tem- 

 perature on, 328. 



Reid (Sir W,), obituary notice of, 543. 



Report of the Joint Committee of the 

 Royal Society and the British Asso- 

 ciation, for procuring a continuance 

 of the magnetic and meteorological 

 observatories, 457. 



Respiration, inquiries into the pheno- 

 mena of, 611 ; action of food on, 638. 



Rolleston (G.) on the aquiferous and 

 oviductal systems in the Larnelli- 

 branchiate Mollusks, 633. 



Roots of the four squares, remarkable 

 relations among, 238. 



Royal Medal awarded to E. Frankland, 

 37; J. Lindley, 39; A. Hancock, 

 518 ; W. LasseU, 519. 



Royle (J. F.), obituary notice of, 547. 



Rue, constitution of the essential oil of, 

 167. 



Rumford Medal awarded to J. C. Jamin, 

 514. 



Russell (W. J.) on the measurement of 

 gases in analysis, 218. 



Sabine (Major-Gen. E.) on hourly ob- 

 servations of the magnetic declination 

 made by Capt. Maguire, R.N., and 

 the officers of H.M.S. 'Plover,' in 

 1852-54 at Point Barrow, 2. 



remarks on the magnetic observa- 



tions transmitted from York Fort, 

 &c., 81. 



Sabine (Major-Gen. E.), letter on mag- 

 netic observatories, 470. 



Salmon (G.) on curves of the third 

 order, 333. 



Scoresby (Rev. W.) obituary notice of, 

 57. 



Siebold (C. T. von) elected foreign 

 member, 487. 



Simpson (M.) on the action of acids on 

 glycol, 725. 



Smith (E.), inquiries into the pheno- 

 mena of respiration, 611. 



, experiments on the action of food 



upon the respiration, 638. 



Sodium-alcohol, action of carbonic oxide 

 on, 697. 



Sodium-ethyl, 341, 345. 



Solids, some thermodynamic properties 

 of, 254. 



Solly (R. H.), obituary notice of, 549. 



Soluble salts, chemical action of water 

 on, 66. 



Sorbamide, 684. 



Sorbic acid, 682. 



Sound, on the theories of, 223. 



Sound, mathematical theory of, 590 ; 

 intensification of, by interposition of 

 water, 649. 



Sounds, stethoscopic analysis of, 205. 



Spinal cord, the, a leader for sensibility 

 and voluntary movements, 1 ; influ- 

 ence of oxygen on vital properties of, 

 2; further researches on the grey 

 substance of, 337. 



Stanethyl, iodide of, action of zincethyl 

 on, 673 ; of zincmethyl, 673. 



Stannic diethyl, 686. 



Stannic ethyl, isolation of, 309. 



Starch, amorphous, in a new tuberaceous 

 fungus, 119. 



Steam-engines with dry saturated steam, 

 thermo-dynamic theory of, 626. 



Stereornonoscope, a new instrument, 

 194. 



Stethophone, on the differential, 196. 



Stratifications in electrical discharges, 

 destruction of, 671. 



Surface envelope of planes, &c., 171. 



Sympathetic nerve, effects of section of, 1. 



Tait (P. G.), second note on ozone, 606. 



Tangential coordinates, on, 175. 



Tanghinia venenifera, physiological ac- 

 tion of, 173. 



Thenard (M.), obituary notice of, 60. 



Thermo-electric series, 97. 



Thomas (L.) on the nature of the action 

 of fired gunpowder, 586. 



