Index. 603 



Proceedings at the Meetings held during the Session 1908 — 1909, 291. 



1909-1910, 589. 

 PuNNETT, R. C, On the alleged influence of lecithin upon the determination 



of sex in rabbits, 92. 

 Purvis, J. E., The radiation of various spectral lines of neon, helium and 



sodium in a magnetic field, 45. 



The influence of dilution on the colour and the absorption spectra of 



various permanganates, 247. 



The absorption spectra of concentrated and diluted solutions of chloro- 



phyll, 85. 



The absorption spectra of mesitylene and trichloromesitylene, 89. 



Purvis, J. E. and Homer, A., The absorption spectra of solid tetramethyl- 



picene and of its solutions, 82. 



Rabbits, The alleged influence of lecithin upon the determination of sex in 



(Punnett), 92. 

 Radio-activity of Rubidium (Campbell), 11. 

 Radium-content of the Waters of the Cam (Satterly), 540. 

 Raven, C. E., Elected Fellow 1910, May 23, 595. 

 Read, J. and Pope, W. J., The Resolution of Externally Compensated Bases 



into their optically active components, 545. 

 Richmond, H. W., On the parametric rejiresentation of the coordinates of 



points on a cubic surface in space of four dimensions, 116. 

 RoBB, A. A., Discussion of a difference equation relating to the tension of 



overhead wires supported by equidistant poles, 198. 

 Robinson, F., The Adsorption of Acids by Carbohydrates, 548. 

 Robinson, F. and Fenton, H. J. H., Homologues of furfural, 182. 

 Romanes, J., Elected Fellow 1910, March 14, 594. 



Rontgen Radiation, The properties of easily absorbed (Whiddington), 574. 

 Rontgen Rays, Emission of, from thin Metallic Sheets .(Kaye), 269. 

 Rontgen Rays Transmission, Phenomena of (Barkla), 257. 

 Rubidium, Radio-activity of (Campbell), 11. 

 Ruhemann, S. and Priestley, J. G., Action of Urethane on Esters of Organic 



Acids and Mustard Oils, 181. 



Satterly, J., Note on the Radium-content of the Waters of the Cam, 

 Cambridge Tap Water and some varieties of Charcoal, 540. 



Scales, F. S., Elected Fellow 1909, February 22, 295. 



Schizoneura, Notes on the genus (Wills), 406. 



ScMzoneura paradoxa, Schimper, Occurrence of, in the Bunter of Nottingham 

 (Vernon), 401. 



Secondary Rontgen radiation from air and ethyl bromide (Crowther), 101. 



Secondary Rontgen Rays from Metallic Salts (Glasson), 437. 



Sell, W. J., Further study of the Products of Chlorination of a-Picoline, 546. 



Sex in rabbits, Alleged influence of lecithin upon the determination of 

 (Punnett)j 92. 



