INDEX. 



559 



Owen (E.) on thebasesproduced by the 

 destructive distillation of peat, 110. 



Ozone, on the occurrence of, in fluor- 

 spar, 515; on the volumetric rela- 

 tions of, 549. 



Parker (W. K.) on Foraminifera from 

 the Upper Triassic Clays near 

 Derby, 85. 



Partitions, double, on a problem of, 

 337. 



Peat, on the bases produced by the 

 destructive distillation of, 110. 



Pfaundler (M.) on the action of penta- 

 chloride of phosphorus on camphor, 

 522. 



Phosphate of lime, on the frequent 

 occurrence of, in human urine, 

 224. 



Phylloxanthine, 143. 



Pinakone, on the preparation and 

 properties of, 201. 



Poncelet's (M.) approximate linear 

 valuation of surd forms, on, 203, 

 307, 525. 



Ponton (M.) on the laws of chromatic 

 dispersion, 253. 

 s. Potassium, on the spectrum reaction 

 * of, 98. 



Pratt (Archdeacon) on the thickness 

 of the crust of the earth, 194. 



Prestwich (J.) on the presence of 

 London clay in Norfolk, 84. 



Radcliffe (Dr. C. B.) on the muscular 

 movements resulting from the ac- 

 tion of a galvanic current upon 

 nerve, 390. 



Racemic acid, on the formation of, 

 from dulcine, 520. 



Regnault (M.) on the elastic force of 

 vapours, 275. 



Richter (M.) on artificial boracite, 378. 



Rijke (Dr. P. L.) on the inductive 

 spark, 441. 



Roots, transcendental, note on, 369. 



Roscoe (Dr.) on the alleged practice of 

 arsenic-eating in Styria, 550. 



Rose (Prof. G.) on the heteromor- 

 phous conditions of the carbonate 

 of lime, 517. 



Royal Institution, proceedings of the, 

 78. 



Royal Society, proceedings of the, 63, 

 149, 223, 316, 385, 469, 534. 



Ruhmkorff (M.) on a magnetic phe- 

 nomenon, 328. 



Sabine (Major-General) on the solar- 



diurnal variation of the magnetic 

 declination at Pekin, 469. 



Salicylic acid, on the constitution of, 

 382. 



Satellites, on the form of, revolving 

 at small distances from their pri- 

 maries, 409. 



Scheibler (M.) On the tungstates, 374. 



Schischkoff(M.)on fulminic acid, 295. 



Schmidt (M.) on the action of redu- 

 cing agents on malic and succinic 

 acids, 49 ; on the action of nitrous 

 acid on sulphanilic acid, 139. 



Schneider (R.) on the volumetric 

 determination of antimony, 342. 



Schrotter (Prof.) on the occurrence of 

 ozone in fluor-spar, 515. 



Schulz (M.) on furfuroi, 381. 



Schwanert (M.) on furfuroi, 381. 



Selenic acid, on a new method of pre- 

 paring, 296, 297. 



Silicic acid, on the different conditions 

 of, 175. 



Silver, on some new salts of the sub- 

 oxide of, 376. 



Smith (Dr. R. A.) on arsenic in coal, 

 408. 



Sodium, on the spectrum reaction of, 

 94, 174. 



Solar eclipse of July 18, 1860, photo- 

 graphic observations of the, 192. 



spots, on the periodicity of, 246, 



271. 



Sound, on a new theoretical deter- 

 mination of the velocity of, 37, 186. 



Sourdeval (M.) on the formation of 

 cyanogen, 296. 



Spectrum, on the radiative power of 

 bodies with regard to the dark rays 

 of the, 169 ; on the lines of the, 

 385. 



Spectrum-observations, chemical ana- 

 lysis by, 89, 173. 



Spiller ( J.), photographic observations 

 of the solar eclipse of July 18 by, 

 192. 



Stereoscopic phenomenon, on a new 

 species of, 329. 



Stewart (B.) on certain laws of chro- 

 matic dispersion, 143; on the ra- 

 diative powers of bodies with re- 

 gard to the dark or heat-producing 

 rays of the spectrum, 169 ; on a 

 minimum and maximum mercurial 

 thermometer, 228 ; on the light 

 radiated by heated bodies, 534. 



