565 



INDEX to VOL. XVII 



ACOUSTICAL observations and 

 experiments, 188, 410. 



Air, on the phenomena exhibited by 

 dusty, in the neighbourhood of 

 strongly illuminated bodies, 214; 

 on the boiling-point of, 490; on 

 the electricity of the, 493. 



Anemometer, on an integrating, 482. 



Ashton (W.) on the ergometer, 160. 



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

 reading electro-measuring instru- 

 ments, and a non-sparking key, 304. 



Baily (W.) on an integrating anemo- 

 meter, 482. 



Bidwell (S.) on Hall's phenomenon, 

 249. 



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

 group of St. Davids, 322. 



Bonney (Prof. T. G.) on some rock- 

 specimens from Anglesey and N. W . 

 Caernarvonshire, 72. 



Books, new : — Thomson's Treatise 

 on the Motion of Vortex-Kings, 

 69; The Elements of Plane Geo- 

 metry, 239 ; L'Annuaire pour Fan 

 1884, 241 ; Clark's Transit-Tables 

 for 1884, 242; Man's Classifica- 

 tion of the Cambrian and Silurian 

 Rocks, 314 ; Macfadzean's Parallel 

 Roads of Glenroy, 319 ; Loewy's 

 Common Sensibles, 403 ; Proceed- 

 ings of the Royal Society of New 

 South Wales, 406 ; Streintz's 

 Grundlagen der Mechanik, 487 ; 

 Dutton's History of the Grand- 

 Canon district, 551. 



Borgmann (J.) on the heating of iron 

 by discontinuous magnetization, 

 409. 



Bosanguet (R. H. M.) on a standard 



tension-galvanometer, 27; on a 

 determination of the horizontal 

 component of the earth's magne- 

 tism at Oxford, 438; on electro- 

 magnets, 531. 



Bottcher (E.) on a new solenoidal 

 galvanometer, 248. 



Brackett (C. F.) on a new device for 

 measuring power, 159. 



Bryant (Mrs. S.) on the failure of the 

 attempt to deduce inductive prin- 

 ciples from the mathematical theory 

 of probabilities, 510. 



Bunsen (Prof. R.) on the condensa- 

 tion of carbonic acid on smooth 

 glass surfaces, 161. 



Carbonic acid, on the condensation 

 of, on smooth glass surfaces, 161. 



oxide, on the boiling-point of, 



under ordinary atmospheric pres- 

 sure, 490. 



Chattock (A. P.) on a method of 

 determining experimentally the 

 constant of an electro-dynamo- 

 meter, 111. 



Chemical affinity, on the determina- 

 tion of, in terms of electromotive 

 force, 282, 377. 



composition, on melting-point 



and boiling-point as related to, 173. 



Clark (J. W.) on the purification of 

 mercury, 24; on the phenomena 

 exhibited by dusty bodies in the 

 neighbourhood of strongly illumi- 

 nated bodies, 214. 



Clausius (Prof. R.) on the theory of 

 dynamo-electrical machines, 46, 

 119 ; on the theory of the trans- 

 mission of power by dynamo- 

 electrical machines, 518. 



Phil Mag. S. 5. No. 109. Suppl. Vol. 17. 



2Q 



