TRANSACTIONS AND PROCEEDINGS 



OF THE 



ROYAL SOCIETY of SOUTH AUSTRAL 



(INCORPORATED). 



"VOL. XLII. 

 [With Thirty-two Plates and Twelve Figures in the Text.] 



EDITED BY WALTER HOWCHIN, F.G.S., 

 Assisted by ARTHUR M LEA, P.E.S. 



PRICE, TWELVE SHILLINGS AND SIXPENCE. 



3tbeiaibe : 



Published by the Society, Royal Society Rooms, North Terrace. 

 DECEMBER 24, 1918. 



Printed by Hussey & Gillingham Limited, 106 and 108, Currie 

 Street, Adelaide, South Australia. 



Parcels for transmission to the Royal Society of South Aus- 

 tralia from the United States of America can be forwarded 

 through the Smithsonian Institution, Washington, D.C. 



