652 



INDEX. 



mission of an epileptiforrn affection 

 accidentally produced, 297. 



Brown-Sequard (E.), experimental re- 

 searches on various questions concern- 

 ing sensibility, 510. 



Brunei (I. 3L), obituary notice of, vii. 



Bunsen (R. W.), photo-chemical re- 

 searches (Part IY.), 39. 



Calculus of operations, on an extended 

 form of the index symbol in, 207. 



Calculus of probabilities, application of, 

 to results of measures of the position 

 and distance of double stars, 133. 



Calorimeter, a new, for determining the 

 radiating powers of surfaces, 514. 



Caoutchine, on, 516. 



Carpenter (W. B.), researches on the 

 Foraminifera (Fourth and conclu- 

 ding series), 506. 



Cartmell (R.) on the behaviour of al- 

 dehydes with acids, 108. 



Caves, observations on the discovery of 

 remains of human art and bones in, 

 60. 



Cayley (A.), Royal Medal awarded to, 

 173. 



on the equation of differences for 



an equation of any order, and hi 

 particular for the equations of the 

 orders two, three, four, and five, 428. 



on the theory of elliptic motion, 



430. 



Chlorphenylamine, on, 589. 



Chowne (W. D.) on the relations 



between the elastic force of aqueous 



vapour at ordinary temperatures, and 



its motive force in producing currents 



of air in vertical tubes, 461. 

 Colour-blindness, remarks on, 72. 

 Compass, deviations of, in wood-built 



andiron-built ships in the Royal Navy, 



538. 



Compound colours, theory of, 404, 484. 

 Copley Medal awarded to W. E. Weber, 



172. 

 Copper, electric conductivity of, effect 



of metals and metall oids on, 460. 

 -, electric conductivity in wires of, 



300. 

 Crace-Calvert (F.) on the conductivity 



of mercury and amalgams, 14. 



on the expansion of metals and 



alloys, 315. 



on some new volatile alkaloids 



given off during putrefaction, 341. 



Croonian Lecture. On the arrangement 

 of the muscular fibres of the ventricu- 

 lar portion of the heart of the mam- 

 mal, 433. 



Darnell's battery, measurement of elec- 

 trostatic force produced by, 319. 



Darkness, influence of, on animals, 184. 



Davy (J.) on the electrical condition of 

 the egg of the common fowl, 31. 



De Grey and Ripon (Earl), election of, 

 473. 



De la Rive (A., For. Mem.), admission 

 of, 433. 



De la Rue (W.) on the resin of the Ficus 

 rubiginosa, and a new homologue of 

 benzylic alcohol, 298. 



De Verneuil (P. E. P.), elected foreign 

 member, 473. 



Diabetes, production of, by lesions of the 

 nervous system, 27. 



Diatomic ammonias, 224. 



Dirichlet (P. Gr. L.), obituary notice of, 

 xxxviii. 



Dobell (H.), supplement to a paper read 

 Feb. 17, 1859, on the influence of 

 white light, of the different coloured 

 rays and of darkness, on the develop- 

 ment, growth, and nutrition of ani- 

 mals, 184. 



Donkin (W. F.) on the analytical theory 

 of the attraction of solids bounded by 

 surfaces of a class including the ellip- 

 soid, 181. 



Double stars, application of calculus of 

 probabilities to measures of, 133. 



Duppa (B.) on boric ethide, 568. 



Ear, mode in which sonorous undula- 

 tions are conducted from the mem- 

 brana tympani to the labyrinth, 32. 



Earthquake in the kingdom of Naples, 

 16th of December 1857, report on, 

 486. 



Electric conductivity, attempt to ascer- 

 tain cause of differences of, in copper 

 wires, 300. 



discharge through rarefied gases 



and vapours, 256. 



Electrical discharge in vacua with an ex- 

 tended series of the voltaic battery, 

 36. 



, action of, on ozone and other 



gases, 427. 



, vacua indicated by, 274. 



discharges, application of, to pur- 

 poses of illumination, 432. 



Electrolytes, movements of, in the vol- 

 taic circuit, 235. 



Electromotive force required to produce 

 a spark in air between parallel metal 

 plates at different distances, measure- 

 ment of, 326. 



Electrostatic force produced by a 

 Darnell's battery, 319. 



