VOL. LXXI. 



PROCEEDINGS OF 

 THE ROYAL SOCIETY. 



No. 467. 



CONTENTS. 



PAGE 



Magnetic Observations in Egypt, 1893 — 1901. By Captain H. Or. Lyonsi, 



K.E. Communicated by Professor Rucker, Sec. R.S 1 



Note on the Effect of Mercury Vapour on the Spectrum of Helium. By 



Professor .T. Norman Collie, F.R.S. . . . s . . . .25 



The Seed-fungus of Lolium temulentum, L., the Darnel. By E. M. Free- 

 man, M.S., University of Minnesota. Communicated by Professor 

 Marshall Ward, F.R.S 27 



On the Effects of Magnetisation on the Electric Conductivity of Iron and 

 Nickel. By G-uy Barlow, B.Sc, Research Fellow of the University of 

 Wales. Communicated by Professor A. Gray, F.R.S 30 



Influence of Temperature on the Conductivity of Electrolytic Solutions. 

 By W. R. Botjspield, M.A., K.C., M.P., and T. Martin Lowry, D.Sc. 

 Communicated by Professor H. E. Armstrong-, F.R.S 42 



OCTO 



Price One Shilling and Sixpence. 

 ctober 17, 1902. 



