BY A. B. WALKOM. 103 
probably identical with Pteris abbreviata Deane described 
from Elsmore, New England District, N.S.W.* Dr: 
Richardsf has placed the conglomerate and sandstone 
between the middle and upper divisions of the volcanic 
rocks to which he assignst a (?) middle and (?) upper 
Cainozoic age respectively. 
The source of the boulder containing Fenestella and 
Polypora (2), seems almost certainly to be in the Drake 
District, and we have, therefore, further indication of a 
south to north drainage in Cainozoic times. 
Dr. Richards§ has already shown that the general 
direction of the drainage when the volcanic rocks were 
poured out was north and south. Wearne and Woolnough|| 
on the other hand, suggest that in Cainozoic times the Water 
Divide was far to the east of ‘ts present position, and that 
there were at least four important streams flowing in a 
westerly direction. 
These two views appear to be in conflict, and of the 
two, the north and south drainage is based on the more 
definite evidence. Whether the two can be shown to be 
in harmony is a question for future study. 
*H. Deane Rec. Geol. Surv., N.S.W., vii. (1900-04), p. 231, pl. XLV. 
tProc. Roy. Soc. Qld., xxvii (1915), 1916, p. 115. 
Op. cit., p. 125. 
§Proc. Roy. Soc., Qld., xxvii., 1916, p. 110. 
||Op. cit, p. 139. 
