CONTENTS. 



The electro-motive series of the metals as an aid to the teaching 

 of inorganic chemistry: with special reference to the action 

 of acids on metals: Prof. R. B. Denison, D.Sc., Ph.D. .. 245 



Le Vaillant's Grotto 252 



New derivatives of diphenoquinone, and a new variety of 



stereoisomerism: J. MoiR^ M.A., D.Sc, F.C.S. 253 



Observations of atmospheric electricity at Bloemfohtein: Prof. 



W. A. D. RuDGE, M.A. • . . ..f 262 



The sugar content of maize stalks : G. N. Blacksh.kw, B.Sc, 



F.C.S 269 



Radimn in Australia 272 



South African Zoology . . . . . . , . . . 27;^ 



TRANSAQfriONS OF SOCIETIES . . . 276 



New Books , . . . 276 



