552 



INDEX. 



sure, 375 j electricity of, 449, 457 ; of 

 effluent, 452. 



Storms, on the law of, 366. 



Substitutions, on the theory of, 75 ; on 

 the law of, 179. 



Sulphate of carbyle, 235. 



Sulphate and muriate of iron, on the use 

 of, as photographic agents, 204. 



Sulphocyanogen, on, 249 ; its composition, 

 249; analysis of, 251; action of alka- 

 lies on, 253; of thiocyanides, of bary- 

 tes, of copper, 256 ; of lead, of silver, 

 257; of mercury, 258. 



Sulphuric and hydrochloric acids in else- 

 oliths, 113. 



Supercretaceous formations, 515. 



Surfaces of the second order, focal proper- 

 ties of, 433. 



Taylor (Thomas) on a new species of bi- 

 liary calculus, 8. 



Telescope, reflecting, experiments on the, 

 380. 



Temperature, on certain effects of, 130. 



Tension spark from the voltaic battery, 

 on the, 215. 



Terrestrial magnetism, contributions to, 

 144. 



Theoretical opinions in electricity, Dr. 

 Hare's letter to Prof. Faraday on cer- 

 tain, 44. 



Theory of substitutions, on the, 75; elec- 

 tro-chemical theory, 183. 



Thomas (Richard) on some tide observa- 

 tions, 134. 



Thomson (Dr. T.) on the minerals found 

 in the neighbourhood of Glasgow, 401. 



Thulite and poonalite, analysis of, 103. 



Tide observations, remarks on some, 134. 



Tides, researches on the, note to the ele- 

 venth series of, 146 ; twelfth series, 384. 



Titanium, blue oxide of, in scoriae, 398 ; 

 blue oxide of, 542. 



Tovey (John) on Mr. Potter's application 

 of Huyghens' principle in physical op- 

 tics, 431. 



Ultramarine, artificial, analysis of, 105. 



Urine of the elephant, on the, 15f>. 



Vapours, heat of, on the, 272, 4(>7, 488. 



Varrentrapp (M. F.), results of analyses of 

 nosean, hauyne, lazulite, and artificial 

 ultramarine, 104. 



Vegetation of Ancient Italy, 92. 



Vine, Palestine, Egypt, the southern li- 

 mit of the, 97 ; cultivation of the, in 

 Britain, 99. 



Voltaic pile, on the source of power in the, 

 145 ; battery, on the tension spark from 

 the, 215; electricity, chemical and con- 

 tact theories of, 237 ; pairs, compara- 

 tive measure of the action of two, 241. 



Walton (Rev. W.), extracts from a meteo- 

 rological journal kept at Allenheads, 

 293. 



Waterford Haven, on the geology around 

 the shores of, 68. 



Wealden and Portland formations, 513. 



Wealdens and coal-fields, on the origin * 

 and vegetation of our, 67 ; theory of, 

 68. 



Whewell (Rev. W.), note to the eleventh 

 series of researches on the tides, 146; 

 on the mean level of the sea, 321 ; on 

 the tides : on the laws of the rise and 

 fall of the sea's surface during each tide, 

 384. 



White elaeolith from Katzenbuchel, in the 

 Odenwalde, 111; analysis of, by Mr. 

 Francis, 112. 



Wieliczka, decrepitating salt of, 318. 



Williams (Rev. D.) on the great grey- 

 wacke system of West Somerset, Devon 

 and Cornwall, 71. 



Wollaston prizes, presentation of the, 304. 



Woods (Samuel) on the anthracite coal of 

 South Wales, 211. 



Worms, 523. 



Yorke (Lieut.-Col.) on electro-chemical 

 equivalents, 298. 



Zeise (M.) on acechlor-platina, 157. 



Zinc, hydrous silicate of, from Lead Hills, 

 406 ; analysis of, 406. 



END OF THE SEVENTEENTH VOLUME. 



PRINTED BY RICHARD AND JOHN E. TAYLOR, RED LION COURT, FLEET STREET. 



