Index. 
629 
Sisson, H. A. and Fenton, H. J. H., The Action of metallic Magnesium on 
certain aliphatic acids, and the detection of Formic acid, 385. 
Smith, A. M., Elected FcPow 1908, May 4, 619. 
Physiology of Plants in the Tropics, 296. 
Solubility of Stereoisomerides in Optically Active Solvents (Jones), 27. 
Spark spectra of lead, tin, etc. (Purvis), 217. 
Spark spectra of titanium, chromium and manganese, Influence of a strong 
magnetic field on the (Purvis), 41. 
Specific Heat of Gases at constant volume and high pressure (Pudge), 85. 
Spectral colours on the sporulation of Saecharomyces, Influence of (Purvis 
and Warwick), 30. 
Spectrum of the discharge from a glowing lime cathode in mercury vapour 
(Horton), 501. 
Spens, W., Elected Fellow 1906, November 26, 320. 
Sporulation of Saecharomyces, Influence of spectral colours on the (Purvis 
and Warwick), 30. 
Stereoisomerides, Solubility of, in Optically Active Solvents (Jones), 27. 
Suboccipital vertebrae, the tendency to fusion shown by the (Macalister), 207. 
Substituted Bromanilines (Hill), 166. 
Sulphate of Guanidine and Aluminium (Ferraboschi), 471. 
Surface tension, Curvature method for measuring (Wilson), 206. 
Tansley, A. G., Elected Fellow 1907, March 11, 322. 
Tetrahydroquinoline compound (Buckney), 177. 
Thermal conductivity of Indiarubber (Searle), 190. 
Thomson, J. J., On the ionization of Gases by Ultra-Violet Light and on the 
evidence as to the structure of light afforded by its Electrical Effects, 
417. 
The nature of y rays, 540. 
On the velocity of Secondary Cathode Rays from gases, 541. 
On the theory of the rotation of the plane of polarization by solutions, 313. 
On Secondary Rontgen Radiation, 109. 
Electrification produced by heating Salts, 105. 
Titanium, spark spectra of (Purvis), 41. 
Trees, Parasitic, in Southern India (Barber), 246. 
Tropics, Physiology of Plants in the (Smith), 296. 
Units of Mass, Length, and Time (Pocklington), 152. 
Valentine-Richards, A. V., Elected Fellow 1906, October 29, 319. 
Variation of absorption bands (Page), 323. See Transactions , xx. 
Velocity and volume of organic ions in aqueous solutions (Laby and Cause), l. 
Warburton, C., The Geographical Distribution of the Acarine Family Oriba- 
tidae , 532. 
On some new and obscure species of the genus Ilacmap/u/salis of the 
Ixodidae , 508. 
