INDEX. 



No. I. The electrical properties of 

 pure sulphur, 32. 



Tomlinson (tl.) the effect of mechanical 

 stress and of magnetisation on the 

 physical properties of alloys of iron 

 and nickel and of mangr.m;se steel, 

 103. 



Trotter (A. P.) the rotation of the 

 electric arc, 262. 



Tubercle-bacillus, on the influence of 

 certain natural agents on the yiru- 

 lence of the (Ransome and Delepine), 

 51. 



Typhoid bacillus, and Bacillus coli 

 commitnis, the behaviour of the, in 

 potable water (Frankland and Apple- 

 yard), 395. 



Vacuum-tubes, on some phenomena in 

 (Salomons), 229. 



Veley (Victor Herbert) elected, 130. 



admitted, 162. 



Vertebral column of fishes, on the evo- 

 lution of the (Gadow and Abbott), 

 296. 



Viscosity of water as determined by 

 J. B. Hannay, on the (Barnett), 259. 



Viscous fluids, on the dynamical theory 

 of incompressible, and the determina- 

 tion of the criterion (Keynolds), 40. 



Visual impressions, on the recurrent 

 images following (Bidwell), 132. 



Voltaic combinations with a fused elec- 

 trolyte and a gaseous depolariser, on 

 some (Swan), 56. 



Ward (H. M.) and P. F. Franklancl, 

 third report to the Water Research 

 Committee of the Royal Sosiety. 

 Part I. Further experiments on the 

 action of light on Bacillus anthracis, 

 and on the bacteria of the Thames 

 (Ward), 315. Part II. The be- 

 haviour of the typhoid bacillus and 

 of the Bacillus coli communis in 

 potable water (Frankland and Apple- 

 yard), 395. 



W ater, on the viscosity of, as determined 

 by J. B. Hannay's microrheouieter 

 (Barnett), 259. 



Water Research Committee of the 

 Royal Society, third report to the. 

 Part I. Further experiments on the 

 action of light on Bacillus anthracis, 

 and on the bacteria of the Thames 

 (Ward), 315. Part II. The behaviour 

 of the typhoid bacillus and of the 

 Bacillus coli communis in potable 

 water (Frankland and Appleyard), 

 395. 



Williamson (W. C.) and D. H. Scott, 

 the root of Lyginodendron Oldhamium 

 (Will.), 128. 



Wilson (E.) and J. Hopkinson, propa- 

 gation of magnetisation of iron as 

 affected by the electric currents in the 

 iron, 108. 



Xenia, and ffeteroxenia, observations on 

 the structure of (Bourne), 2a9. 



ERRATA. 



Page 12, line 8, after the word " grams " insert " of ballistite." 

 252, 10, for " charge" read " charged." 



END OF FIFTY-SIXTH VOLUME. 



HA1UUSON AMi> SONS, PK1NTEUS IN OEDINAKV TO HEU MAJESTY, ST. MAJtlllS'S LAKE. 



