C 516 ] 



INDEX to VOL. XL1V. 



Accumulator, on the oscil- 

 latory discharge of a large, 259. 



Acetylene, on the condensation and 

 critical phenomena of mixtures of, 

 with ethane and carbonic acid, 

 174. 



./Ether, on the motion of the, in an 

 electromagnetic field, 20. 



Air, on the electrification of, by 

 uranium, 102 ; on electrical dis- 

 charges in, 285. 



Ahny (J. E.) on accidental double 

 refraction in liquids, 499. 



Aluminium, on some new lines in 

 the spark-spectrum of, 289. 



Ames (Prof. J. S.) on the effect of 

 pressure upon the series in the 

 spectrum of an element, 119. 



Appleyard (R.) on the formation of 

 mercury films by an electrical 

 process, 74. 



Barton (Dr. E. H.) on the attenua- 

 tion of electric waves along wires, 

 and their reflexion at the oscil- 

 lator, 145. 



Barns (Prof. C.) on the secular soft- 

 tening of cold hard steel, with 

 remarks on electrical standards, 

 486. 



Beattie (Dr. J. C.) on the electrifi- 

 cation of air by uranium and its 

 compounds, 102. 



Biaxals, on models and diagrams to 

 illustrate the propagation of light 

 in, 317. 



Black body, on the energy spectrum 

 of a, 136. 



Blake (Rev. J. F.) on the laccolites 

 of Cutch, 129. 



Blakesley (T. H.) on a new definition 

 of focal length, and an instrument 

 for determining it, 137. 



Books, new : — Murray'slntroductory 

 Course in Differential Equations, 

 367 ; Routh's Dynamics of a Sys- 

 tem of Rigid Bodies, 367 ; Fisher's 

 The Potentiometer and its Ad- 

 juncts, 440 ; Bucherer's Kritik der 

 Nernst'schen thermodynamischen 

 Anschauungen, 441 ; Cohn's Elek- 

 trische Strome, 441 ; Wiedemann 

 and Ebert's Physikalisches Prak- 



ticum mit besondererBeriicksichti- 

 gung auf physikalisch-chemische 

 Methoden, 441 ; Mendeleeff's Prin- 

 ciples of Chemistry, 514. 



Brace (Prof. D. B.) on light propa- 

 gated in a dielectric normal to the 

 lines of force, 342. 



Brackett (B. B.) on the effects of 

 tension and quality of the metal 

 on the changes in length produced 

 in iron wires by magnetization, 

 122. 



Braun (Dr. F.) on the decomposition 

 of silver salts by pressure, 172. 



Brush (C. F.) on the measurement 

 of small gaseous pressures, 415. 



Buckman (S. S.) on deposits of 

 Bajocian age in the North Cottes- 

 wolds, 443. 



Cables, on alternating currents in 

 concentric, 61. 



Callaway (Dr. C.) on the origin of 

 the gneisses of Anglesey, 126. 



Carbonic acid, on the condensation 

 and critical phenomena of mixtures 

 of, with ethane and acetylene, 

 174. 



Conductivity, on the measurement 

 of electrolytic, by continuous cur- 

 rents, 133 ; on the specific electric, 

 of solutions of water in formic 

 acid, 9. 



Conductors, on the propagation of 

 electric waves along cylindrical, 

 199. 



Critical phenomena of some sub- 

 stances and mixtures, on the, 174. 



Currents, on alternating, in con- 

 centric cables, 61. 



Day (W. S.) on a recalculation of 

 Rowland's value of the mechanical 

 equivalent of heat in terms of the 

 Paris hydrogen thermometer, 

 169. 



Daylight, measurement of the bright- 

 ness of, 212. 



Determinant, on the relations be- 

 tween the coaxal minors of a, 362. 



Determinant notation, on, 396. 



Dickson (J. D. H.) on platinum tem- 

 peratures, 445. 



Dielectrics, on the effect of a 



