564. 



INDEX. 



Brodie (Prof.) on oxidation and dis- 

 oxidation bv peroxide of hydrogen, 

 393. 



Broun (J. A.) on the lunar semidiur- 

 nal variation of the barometer, 66 ; 

 on the variation of magnetic decli- 

 nation, 67- 



Bunsen (Prof.) on the preparation of 

 the rubidium compounds, 46. 



Caffeidine, researches on, 528. 



Cahours (M.) on American petroleum, 

 384. 



Calcium, on a carbide of, 526. 



Calculus of variations, on the prin- 

 ciple of discontinuity in solutions 

 of problems in the, 196. 



Campbell (D.) on the action of nitric 

 acid upon pyrophosphate of mag- 

 nesia, 380. 



Camphor, on the motion of, towards 

 the light, 358 ; on the motions of, 

 on the surface of water, 490. 



Camphrene, researches on, 530. 



Cannizzaro (M.) on some organic ra- 

 dicals, 24. 



Caproylene, on hydride of, 384. 



Carbon, on the determination of, in 

 iron, 522, 525. 



Carlet (M.) on cenanthole, 385. 



Cayley (A.) on a transcendent equa- 

 tion, 19; on equations of the fifth 

 order, 291 ; on the skew surface of 

 the third order, 514. 



Challis (Prof.) on a mathematical 

 theory of the vibrations of an elas- 

 tic fluid, 135, 291 ; on the principle 

 of discontinuity in solutions of pro- 

 blems in the calculus of variations, 

 196 ; on the explanation of pheno- 

 mena of light on the hypothesis of 

 undulations, 462. 



Chandler (C. F.) on a new metal in 

 the native platinum of Oregon, 1 68. 



Chemical Notices from foreign jour- 

 nals, 22, 185, 305, 381, 519. ' 



Chlorides, on the violet flame of many, 



417. 



Chromium, on the reduction of, from 

 solution of the chloride, 328. 



Circle, on an easy mode of approximat- 

 ing to the circumference of the, 560. 



Clausius (Prof. R.) on the application 

 of the theorem of the equivalence 

 of transformations to the internal 

 work of a mass of matter, 81, 201. 



Cocaine, researches on, 25. 



Cockle (J.) on a new species of differ- 

 ential equations, 37 ; on symbolical 

 decomposition, 288 ; on the corre- 

 lations of analysis, 531. 



Combustion, on the influence of at- 

 mospheric pressure upon some of 

 the phenomena of, 232. 



Condensers, on the limit of the charge 

 of, 495. 



Coniine, researches on, 388. 



Copper, on some basic salts of, 123. 



Crafts (J. M.) on the sulphide of 

 ethylene, 387. 



Croll (J.) on Amperian repulsion, 

 326. 



Crova (M.) on the formation of cu- 

 preous acetylene in copper gas- 

 pipes, 384. 



Ciystallization, researches on, 395. 



Cuminyle, on a new method of pre- 

 paring, 24. 



Davy (M.) on the electromotive force 

 of voltaic piles, 76. 



Dawson (J. W.) on the land flora of 

 the Devonian period in North-east- 

 ern America, 75. 



Debray (M.) on the volatilization of 

 tungstic acid, 309. 



Deville (M.) on the production of 

 Levyne, 26. 



Dioxyethylene, researches on, 23. 



Drach (S. M.) on an easy mode of ap- 

 proximating to the circumference 

 of the circle, 560. 



Dufour (L.) on the density of ice, 167. 



Dumas (M.) on a mode of applying 

 the electric light for mining pur- 

 poses, 408. 



Duprey (M.) on the preparation of 

 oxygenated water, 526. 



Earth, on the fluid theory of the 

 figure of the, 409, 507. 



Ecgonine, on the production of the 

 new base, 25. 



Eclipse, on the nature of the red pro- 

 tuberances on the sun's disk during 

 a total, 302. 



Edlund (M.) on the thermal pheno- 

 mena which accompany the changes 

 in volume of solid bodies, 329. 



Electric force, on the relation of nerve 

 force to, 11. 



light, on a mode of applying the, 



for mining purposes, 408. 



resistance, on the measurement 



of, 149. 



