CONTENTS. 



PAGE, 



On veins and inclusions in the Stellenbosch granite : Prof. S. J. 



Shand, D.Sc, Ph.D. (Plates 4, 5 and 6) 247 



South Africa — and the undergraduate: A. E. Griffiths, M.A 252 



Preservation of Timber . . 262 



Hydrolysis of sugar by ultra-violet rays . . 262 



Is silica an indispensable constituent of plant food? M. Lundie .. 263 

 On the effects of the bite of certain opisthoglyphous snakes: W. H. 



Andrews, M.R.C.V.S 269 



Transactions of Societies 276 



Townshend, Taylor and Snashall, Printers, Cape Town. 



