THE 



SOUTH AFRICAN JOURNAL 

 OF SCIENCE: 



BEING THE ORGAN OF THE 



SOUTH AFRICAN ASSOCIATION 



FOR THE 



ADVANCEMENT OF SCIENCE 





Issued Monthly. v ^- • ««>.>/ CS 



. ^^>> t3^ '^^^^ 



VOL VI. AUGUST, 1910. No. 10. 



CAPE TOWN: 



PUBLISHED BY THE ASSOCIATION. 



1910 [Price 2s. 



