Contents. vii 



PAGE 



On the differential equations of the hyperelliptie functions. By Dr H. F. 



Baker 219 



On Bismuth. By R. H. Adie 240 



Proceedings at the Meetings held during the Session 1902 — 1903 . . 247 

 Note on the Pulverization of "Nickel-grains" in Fuming Nitric Acid. 



By Dr W. A. Hollis 253 



Note on the action of Radium rays on Mercurous Salts. By S. Skinner. 260 

 On Nutrition and Sex-determination in Man. By R. C. Punnett . 262 

 On some minerals from the Binnenthal, Switzerland. By R. H. Solly . 277 

 Exhibition of Living Gongylus gongyloides, a floral Mantis. By Captain 



C. E. Williams. (Communicated by Mr D. Sharp) . . . 278 

 Wheat Breeding. By R. H. Biffen . . . . . . 279 



On the Kinetic Theory of Matter. By H. C. Pocklington . . . 283 

 Note on the proportion of the sexes in 'Carcinus-maenas. By R. C. 



Punnett 293 



The Horse in Iceland and t/ie Faroes. (With Plate III.) By Francis 



H. A. Marshall and Nelson Annandale . . . , . 297 

 The Action of Ultra- Violet Light on Moist Air. By J. H. Vincent . 305 

 Experiment to show that negative electricity is given off by a metal exposed 



to Rbntgen Rays. By Prof. J. J. Thomson 312 



On the variation with the loave-length of the double refraction in strained 



glass. (Third paper.) By L. N. G. Filon 313 



Note on the measurement of the dispersion of double refraction in strained 



glass. By L. N. G. Filon 337 



On Differences between the Spectra at Anode and Kathode in certain gases, 



and on the probable reasons for these differences. (With Plate IV.) 



By Prof. G. D. Liveing 338 



On the Distribution and Spectra of Metallic Vapours in Electric Sparks. 



By Hugh Ramage 350 



On the transmission of Earthquake waves through the Earth. By Rev. 



0. Fisher 354 



Some High Andine and Antarctic Umbelliferae. By A. W. Hill . . 362 

 Free-living fresh-water New Zealamd Nematodes. By N. A. Cobb, with 



note by K. Lucas. (Communicated by Mr A. E. Shipley) . . 363 

 Relative Amount of Ionization produced in Air and Hydrogen by Rbntgen 



Rays. By R. K. McClung 375 



On the Calculation of Capacities in terms of the Coefficients of Electrostatic 



Induction. By G. F. C. Searle 378 



On a soluble colloidal form of ferric and of other phosphates. By 



W. J. Sell 388 



On the presence of Radio- Active Matter in ordinary substances. By Prof. 



J. J. Thomson . .391 



The Temperature Effect in the Combination of Hydrogen and Chlorine 



under the influence of Light. By P. V. Bevan .... 398 

 On Convection of Heat. By Harold A. Wilson 406 



