The Electrical Effect* of Light upon Green l*-a\.-s. (Pi-limiiiar\ < '1.111- 

 munication.) By Augustus D. Waller, M.D., F.R.S " 120 



On the Viscosity of Gases as affected by Temperature. By lx>rd Rav- 

 leigh, F.R.S :... 137 



Report of Magnet ical Observations at Falniouth Observatory for the 

 Year 1897 " 13!) 



Rejwrt of Magnetical Obsei \ati..n> at Faluu.uth OWrvatory fi.r the 

 Year 1898 ' 144 



Report of Magnetical Observations at Fahuouth Observatory for the 

 Year 1899 lf,3 



No. 437 



Data for the Problem of Evolution in Man. V. On the Correlation 

 between Duration of Life and the Number of Offspring. By Mis> M . 

 Beeton, G. U. Yule, and Karl Pearson, F.R.S., University College, 

 London *.... 1">9 



On the Effects of Changes of Temperature on the Elasticities and 

 Internal Viscosity of Metal Wires. By Andrew Gray, LL.D., 

 F.R.S., Professor of Natural Philosophy in the University of Glas- 

 gow, and Vincent J. Blyth, M.A., and James S. Dunlop, M.A., B.Sc., 

 Houldsworth Research Students in the University of Glasgow 180 



On the Connection between the Electrical Properties and the Chemical 

 Composition of Different Kinds of Glass. Part II. Bv Pn-t 

 Andrew Gray, LL.D., F.R.S., and Professor James J. Dobl>i-. M. A.. 

 D.Sc .". 1!7 



On the Change of Resistance in Iron produced by Magnetisation. By 

 Andrew Gray, LL.D., F.R.S., Professor of Natural Philosophy in 

 the University of Glasgow, and Edward Taylor Jones, I >.S< ., Pro- 

 fessor of Physics in the University College of North Wales 208 



The Exact Histological Localisation of the Visual Area of the Human 

 Cerebral Cortex. By Joseph Shaw Bolton, B.Sc., M.D., RS. (Loud.). 

 Communicated by Dr. Mott, F.R.S 21G 



Underground Temperature at Oxford in the Year 1899, as determined 

 by Five Platinum-resistance Thermometers. By Arthur A. Ram- 

 l.unt, M.A., D.Sc., Radclitfe Observer. Communicated by E. H. 

 (Griffiths, F.R.S 218 



On the Kinetic Accumulation of Stress, illustrated by the Theory of 

 Impulsive Torsion. By Karl Pearson, F.R.S., Professor of Applied 

 Mechanics, Univeisity College, London 222 



The Nature and Origin of the Poison of Lotus Arabian. Preliminary 

 Notice. By Wyndham R. Dunstan, M.A., F.R.S., Sec. C.S., Director 

 of the Scientific LYpaitment of the Imperial Institute, and T. A. 

 Henry, B.Sc.. Lond., Walters' Company's Research Fellow 2i'4 



