548 



INDEX. 



Cape meteoritej on the composition 

 of the, 213. 



Capillar)- attraction, on the influence 

 of, upon the hydrometrical mea- 

 sui'ement of the specific gravity of 

 liquids, 113. 



Carbon, on the immediate source of 

 the, exhaled by the lungs, 429. 



Cayley (A.) on the theory of grouj)s, 

 as depending on the symbolic 

 equation ^"=:1, 34; on the tUs- 

 tribution of electricity upon 

 spherical sm-faces, 119, 193; on 

 contour and slope lines, 264 ; on 

 the analytical forms called trees, 

 3/4 ; on the theorem that every 

 algebraic equation has a root, 436 ; 

 on cones of the third order, 439 ; 

 on the double tangent of a plane 

 curve, 471. 



ChalUs (Prof.) on the "loss of half 

 an undulation " in physical optics, 

 57 ; on the occultatiou of Saturn 

 by the moon on May 8, 1859, 315 ; 

 on a mathematical theory of attract- 

 ive forces, 321 ; on a theory of 

 the force of gravity, 443. 



Chemical notices from foreign jour- 

 nals, 128, 285, 451. 



Chromium, on the preparation of me- 

 tallic, 455 ; on the preparation of 

 the bromide of, 457 ; on the mag- 

 netic oxide of, ib. 



Church (A. H.) on parabenzole, and 

 on the isomers of turpentine, 522. 



Cloez (M.) on the action of bromine 

 and chlorine on methylic alcohol, 

 451. 



Cockle (J.) on the theory of equations 

 of the fifth degree, 50, 342, 508. 



Comets, on the structure of the tails 

 of, 479. 



Cones of the third order, on, 439. 



Contour lines, on, 264. 



Cresylic alcohol, and new acids de- 

 rived from, on, 130. 



Crystalline bodies, on the expansion 

 of, by heat, 155. 



Crystallography, on the employment 

 of the gnomonic projection of the 

 sphere in, 37. 



Cube, on the partition of the, 428. 



Curve, on the double tangent of a 

 plane, 471. 



Dale (Rev. T. P.) on some optical 

 properties of phosphorus, 30, 



Davy (Prof. E. W.) on the presence 

 of arsenic in some artificial manures, 

 and its absorption by plants, 108. 



Debray (H.) on the production of 

 azurite, 397. 



Debus (Dr. H.) .on the oxidation of 

 glycol, and on some salts of gly- 

 oxylic acid, 463. 



Dellmann (F.) on atmospheric elec- 

 tricity, 401. 



De Morgan (Prof.) on the general 

 principles of which the composition 

 or aggregation of forces is a con- 

 sequence, 232. 



Deville (M.), observations on silicon, 

 458. 



Dioxymethylene, on, 287. 



Diphosphonium-compounds, on, 148. 



Dobell (H.) on the influence of white 

 light, of the different coloured rays, 

 and of dai-kness on the develop- 

 ment, growth, and nutrition of ani- 

 mals, 143. 



Dock gates, on the angle of, 427. 



Donaldson (Dr.) on Plato's cosmical 

 system as exhibited in the tenth 

 book of " The Repubhc," 231. 



Draper (Prof. J. C.) on a new pho- 

 tometric process for the determi- 

 nation of the diurnal amount of 

 light, 91. 



Drummond (J.) on some points of 

 analogy between the molecular 

 structure of ice and glass, 102. 



Duclos (M.) on cresylic alcohol, 130. 



Duppa (B. F.) on iodacetic acid, 54. 



Dyeing, critical and experimental con- 

 tributions to the theory of, 481. 



Earth, on the thickness of the crust 

 ofthe, 22, 259,344, 420. 



Eisenlohr (F.) on the relation be- 

 tween the direction of the vibra- 

 tion of light and the plane of po- 

 larization, and on its determination 

 by means of diffi-action, 186. 



Electric current, on the action of the 

 magnet upon the, 1. 



dischai-ge, observations on the, 



1,7. 



properties of insulating or non- 

 conducting bodies, on the, 533. 



Electricity, on frictional, 26 ; on the 

 distribution of, upon spherical sur- 

 faces, 119, 193 ; on the existence of 

 a new species of resistance to the 

 transmission of, 237 i on atmo- 



