

JOURNAL AND PROCEEDINGS 



OF THE 



ROYAL SOCIETY 



OF 



NEW SOUTH WALES 



FOR 



1920. 

 ■VOL. LIT. 



EDITED BY 



THE HONORARY SECRETARIES. 



THE AUTHORS OF PAPERS ARE ALONE RESPONSIBLE FOR THE STATEMENTS 

 MADE AND THE OPINIONS EXPRESSED THEREIN. 



# P] 



"2- FS&c 



SYDNEY 

 PUBLISHED BY THE SOCIETY, 5 ELIZABETH STREET, SYDNEY. 



1920 



