[ 509 ] 



INDEX to VOL. XXX. 



AcTINOELECTRICAL investi- 

 gations, 436, 438. # 



Air, on the electrification of, by 

 water-jet, 148; on electrical oscil- 

 lations in, 323. 



Alkalies, on the spectra of the, 203. 



Amalgams, on the changes of pro- 

 perty of, by repeated fusion, 228. 



Ames (J. S.) on relations between 

 the lines of various spectra, 33 ; 

 on some gaseous spectra, 48. 



Astigmatism, on the measurement of, 

 427. 



Astronomical measurements, appli- 

 cation of interference methods to, 1 . 



Atoms, on the motion of, in electric 

 discharges, 480. 



Awaruite, on the alloy, 200. 



Ayrton (Prof. W. E.) on galvano- 

 meters, 58. 



Bartaniek (G.) on the demonstration 

 of Hertz's experiments, 364. 



Barus (O.) on the isometrics of liquid 

 matter, 338. 



Basset (A. B.) on an electromag- 

 netic theory of quartz, 152. 



Batteries, on secondary, 162. 



Blake (Prof. J. F.) on the Monian 

 and basal Cambrian rocks of Shrop- 

 shire, 122. 



Boiling-points, molecular volumes, 

 and chemical characters of liquids, 

 on the relations between the, 412, 

 423. 



Boltzmann (L.) on the experiments 

 of Hertz, 126. 



Boltzmann's kinetic theory of gases, 

 on, 95. 



Books, new : — "Whiting's Experi- 

 ments in Physical Measurements, 

 118; Muir's Theory of Determi- 

 nants, 191 ; Baker's Elliptic Func- 

 tions, 434 ; Davis's Introduction 

 to the Logic of Algebra, 434 ; 

 Forsyth's Theory of Differential 

 Equations, Part I., 436. 



Borgmann (J.) on 

 phenomena, 438. 



actinoelectrical 



Boys (Prof. C. V.) on the elastic 

 constants of quartz threads, 116 ; 

 on photographs of rapidly moving 

 objects, and on the oscillating 

 electric spark, 248. 



Bridge (J.) on the measurement of 

 astigmatism and other ocular de- 

 fects, 427. 



Brown (J.) on the electrification of 

 the effluvia from chemical or from 

 voltaic reactions, 21 ; on dropping- 

 mercury electrodes, 170. 



Browne (R. M.) on "changes of 

 level" along the shores on the W. 

 side of Italy, 200. 



Bryan (G. H.) on the deformation of 

 twisted strips, 476. 



Buckman (S. S.J on the Upper-Lias 

 Clay of Down Cliffs, 196. 



Burbury (S. H.) on some problems 

 in the kinetic theory of gases, 298. 



Cadmium, on the spectrum of, 33. 



Carnot's principle, on diamagnetism 

 and, 124, 201. 



Chronographic measurements, on a 

 method of eliminating the effects 

 of latency of electromagnetic styli 

 in, 160. 



Classen (II.) on an easy mode of pro- 

 ducing the active spark in Hertz's 

 experiments, 125. 



Coil, on a formula for calculating the 

 self-induction of a, 223. 



Cooper(W . J.) : on hydrogen gas, 431. 



Culverwell (E. P.) on Boltzmann's 

 kinetic theory of gases, 95. 



Diamagnetism and Carnot's principle, 

 on, 124, 201. 



du Bois (H. E. J. G.) on magnetic 

 circuits, 325 ; on refraction and 

 dispersion in certain metals, 365. 



Earth, on the general system of winds 

 on the, 497. 



Edge worth (Prof. F. Y) : problems 

 in probabilities, 171. 



Electric currents, on Huygens's gear- 

 ing in illustration of the induction 

 of, 30. 



