Contents. vii 



page . 

 'Mr R. H. Biffen, On the Biology of Bulgaria polymorpha . . . 260 

 Mr S. Skinner, On the Electro-chemical Equivalent of Carbon . . 261 

 Mr Alfred Harker, On the Magnetic Disturbances in the Isle of Skye 



(with Plates XI, XII) 268 



Mr A. C. Dixon, On Differential Equations toith two Independent 



Variables 278 



Mr G. E. H. Barrett-Hamilton, A suggestion as to a possible ■ mode of 



Origin of some of the Secondary Sexual Characters in Animals as 



afforded by Observations on certain Salmonids .... 279 

 Mr W. L. H. Duckworth and Mr B. H. Pain, An Account of some 



Eskimo from Labrador 286 



Mr W. L. H. Duckworth and Mr D. H. Fraser, A Description of some 



dental Rudiments in hihman crania 292 



Mr J. Graham Kerr, On the Zoological Position of Palaeospondylus, 



Traquair 298 



Mr F. Gowland Hopkins, On the Separation of a pure Albumen from 



Egg-white 300 



Mr Herbert Richmond, On the simplest algebraic minimal curves, and 



the derived real minimal surfaces ....... 301 



Mr G. B. Mathews, Diophantine Inequalities 302 



Mr R. S. Willows, On the distance betiueen the striae in the positive 



column and other phenomena connected with the discharge (with 



Plate XIII) 302 



Professor Ewing, The teaching of Mechanics by experiment . . .316 

 Mr W. F. Sheppard, On the calculation of the double integral expressing 



normal correlation .......... 317 



Mr G. F. C. Searle, Apparatus for Measuring the Extension of a Wire . 318 

 Professor Macalister, Exhibition of Anomalous Bones from Predynastic 



Egyptian Skeletons .......... 325 



-Dr Gaskell, Ammocoetes a Cephalaspid ...... 325 



Mr H. H. Brindley, Note on some Abnormalities of the limbs and tail of 



Dipnoan Fishes (with Plate XIV) 325 



Mr Walter Myers, The Standardisation of Antivenomous Serum . . 328 

 Major MacMahon, On a certain Diophantine Inequality . . .331 



Mr Richmond, On rational Space Curves of the fourth order . . . 331 



Mr J. H. Vincent, Experiments on Impact 332 



Mr T. J. IA. Bromwich, The Classification of Conies and Quadi'ics . 358 

 Dr Louis Cobbett, On the Heat generated by certain Fibrous Substances 



when wetted ........... 372 



Mr L. R. Wilberforce, A Method of measuring the Retardation produced 



by a Crystal Plate 376 



Proceedings at the Meetings held during the Session 1899—1900 . . 377 



Hopkins Prize Awards 384 



Index 385 



