V 



JOURNAL 



AND 



PROCEEDINGS 



OP t THE 



ROYAL SOCIETY 



' ' ( 



OF 



NEW SOUTH WALES 



1917. /<b v * 



(INCORPORATED 188li ^ U I * 



"VOL. LI. X^al Mus* v - 



EDITED BY 



THE HONORARY SECRETARIES. 



THE AUTHORS OF PAPERS ARE ALONE RESPONSIBLE FOR THE STATEMENTS 

 MADE AND THE OPINIONS EXPRESSED THEREIN. 



SYDNEY : 



PUBLISHED BY THE SOCIETY, 5 ELIZABETH STREET, SYDNEY. 



LONDON AGENTS : 



GEORGE ROBERTSON & Co., PROPRIETARY LIMITED, 



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1917. 



