472 



INDE X. 



Spectrum-analysis, researches in, 147, 



Spectrum of the Bessemer-flame, on 

 the, 81. 



Spherical trigonometry, on the his- 

 tory of certain formulae in, 98. 



Sprengel (H.) on the invention of the 

 water air-pump, 153. 



Stars, on the motions of some, from 

 or towards the earth, 140. 



Steel, on the effects of magnetization 

 in changing the dimensions of bars 

 of, 350. 



Stefan (J.) on stratification in a liquid 

 in oscillatory motion, 320. 



Stoletow (Dr. A.) on the magnetizing- 

 function of soft iron, 40. 



Strutt (the Hon. J. W.) on the law of 

 gaseous pressure, 438. 



Stuart (J.) on the attraction of a gal- 

 vanic coil on a small magnetic 

 mass, 218. 



Sulphuric acid-manufacture, on the 

 chemistry of, 23, 121. 



Sulphurous acid, on the boiling-point 

 of liquefied, 240. 



Sun, on the spectrum of the, 14/ ; on 

 the absorption of the chemically 

 active rays in the atmosphere of 

 the, 345. 



Sundell (A. F.) on galvanic induction, 

 283. 



Supersaturated saline solutions, ob- 

 servations on, 67, 182, 2/6, 385. 



Telegraph-cables, on a method of 

 testing submarine, during paying- 

 out, 199. 



Telegraphy, on duplex, 426. 



Thenard (A.) on the actions of elec- 

 tric discharges upon gases and 

 vapours, 154. 



Thermometers, detection of impuri- 

 ties in, 244. 



Thomson (Sir W.) on the ultramun- 

 dane corpuscules of Le Sage, and on 

 the motion of rigid solids circula- 

 ting irrotationally through perfora- 

 tions in them or in a fixed solid, 

 321. 



Todhunter (I.) on the history of cer- 

 tain formulas in spherical trigono- 

 metry, 98. 



Tomlinson (C.) on the action of solid 

 bodies on gaseous supersaturated 

 solutions, 276 ; on supersaturated 

 saline solutions, 385. 



Treve (M.) on electromagnetism, 80. 



Ultramundane corpuscules of Le 

 Sage, on the, 321 . 



Vapours, on the actions of electric 

 discharges upon, 154; on the ex- 

 pansion of superheated, 401. 



Vogel (H. C.) on the absorption of 

 the chemically active rays in the 

 sun's atmosphere, 345. 



Wanklyn (J. A.) on fractional distil- 

 lation, 129. 



Watts (Dr. W. M.) on the spectrum 

 of the Bessemer-flame, 81. 



Wenham (F. H.) on a new formula 

 for a microscope object-glass, 224. 



Wheatstone's bridge, on the best ar- 

 rangement of, for measuring a given 

 resistance, 114. 



Wilde (H.) on some improvements 

 in electromagnetic induction ma- 

 chines, 439. 



Zenger (Ch. V.) on the action of a 

 conductor arranged symmetrically 

 round an electroscope, 235. 



END OF THE FORTY-FIFTH VOLUME. 



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