56S 



INDEX. 



Strontia, on the detection of, 520. 



Sugar, on the conversion of, into 

 mannite, 307. 



Sylvester (Prof. J.) on the integral 

 of the general equation in differ- 

 ences, 436. 



Symbolical decomposition, on, 288. 



Temperature of bodies, on the mea- 

 surement of, by thermometers, 447. 



Thallium, on the preparation and pro- 

 perties of, ]$5 ; on some organic 

 salts of, 525. 



Thermometers, on the measurement 

 of the temperature of bodies bv, 

 447. 



Thomson (Prof. J.) on ground-ice 

 in rivers, 241; on the calm lines 

 often seen on a rippled sea, 247 ; 

 on crystallization and liquefaction, 

 395. 



Thomson (Prof. W.) on the measure- 

 ment of electric resistance, 149. 



Tomlinson (C.) on the motion of 

 camphor towards the light, 358 ; 

 on the motions of camphor on the 

 surface of water, 490. 



Transformations, on the principle of 

 the equivalence of, 81, 201. 



Transpiration, on liquid, 238. 



Troost (M.) on the equivalent of li- 

 thium, 26. 



Tungstates, on artificial, 28. 



Tungstic acid, on the volatilization of, 

 309. 



Tyndall (Prof.) on force, 57; on the 

 conformation of the Alps, 169 ; on 

 Mayer, and the mechanical theory 

 of heat, 173; on the absorption 

 and radiation of heat by gaseous 

 matter, 270, 337, 422. 



Ullgren (M.) on the determination of 

 carbon and nitrogen in iron, 522. 



Undulatory theory, observations on 

 the, 462. 



Uvitinic acid, 192. 



Van Breda (Prof.) on Amperian re- 

 pulsion, 126. 



Vapour, on Dalton's theory of, 30 

 Vibrations, on the hydrodynamical 



theory of, 135, 291. 

 Vincent (C. W.) on the reduction of 



chromium from solution of the 



chloride, 328. 

 Vogt (Dr. C.) on the influence of traces 



of foreign metals on the electric 



conducting power of mercury, 30. 

 Volhard (M.) on the synthesis of sar- 



cosine, 529. 

 Voltaic battery, on the heat developed 



at the poles of a, 225. 

 ■ currents, on the nature and 



qualities of, 403. 



piles, on the electromotive 



force of, 7&. 



Water, on the colour of, 218. 



Waves, on the form and motion of, 

 420 ; on the transit-velocity of 

 earthquake-, 229. 



Weber (Dr.) on the crystals of the sul- 

 phuric-acid chambers, 310. 



Weiss (Dr. A.) on the solar spectrum, 

 407. 



Weltzien (M.) on the formation of 

 iodic acid, 188. 



Wertheim (M.) on coniine and deri- 

 vatives, 388. 



Whitaker (W.) on the western extre- 

 mity of the London basin, 74. 



Wich (M.) on the determination of 

 carbon in iron, 525. 



Window-glass of Pompeii, examina- 

 tion of the, 78. 



Wohler (Prof.) on cocaine, 25 ; on 

 the preparation of pure caustic 

 soda, 27 ; on carbide of calcium, 

 526. 



Wurtz (M.) on dioxyethylene, 23 ; on 

 a new method of forming amylene, 

 24; on aldehyde, 191 ; on hydrate 

 of antylene, 386. 



Zeno (T.) on changes in the apparent 

 size of the moon, 390. 



Zinc-ethyle, on the preparation of, 

 306. 



END OF THE TWENTY-FOURTH VOLUME. 



PRINTED BY TAYLOR AND FRANCIS, 

 RED LION COURT, FLEET STREET. 





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