412 EDWARD F. PITTMAN. 
stone are exhibited on the table. The outcrop of this rock was 
traced from near Texas to Roma, following a more or less north- 
westerly course, but overlaid in places by the Desert Sandstone, 
(Upper Cretaceous). 
The most southerly portion of this outcrop is described by Mr. 
Jack as differing somewhat from the typical Blythesdale Braystone 
as seen on the Weir River, and at Roma and other places further 
northward. The rock to the west of Texas is a gritty sandstone, 
and it contains cementing material, which appears to be absent 
from the typical Braystone ; the latter is also, asa rule, much 
finer grained. 
I have inspected the Braystone beds in the neighbourhood of 
Roma and Blythesdale, and I have also seen the sandstones fifteen 
miles west of Texas, and am strongly of opinion that the latter 
belong to freshwater beds of Triassic or Jurassic age—in other 
words to the Ipswich measures, and not to the marine beds of the — 
Lower Cretaceous (Blythesdale Braystones). I have, as already 
stated, traced these gritty sandstones without any sign ofa break 
in their continuity, from the point fifteen miles west of Texas to 
Wallangra, and from the spoil heap of a well, ninety feet deep, 
twelve miles south-west of Yetman, I have obtained impressions 
of the fossil plant Teniopteris Daintreei. Samples of the sand- 
stones from the west of Texas, and from the south of Yetman are 
exhibited for comparison. 
In his paper read before the Australasian Association for the 
Advancement of Science, Mr. Jack describes the Blythesdale 
Braystones as the intake beds of the Cretaceous basin, but he adds 
that he strongly suspects they “‘ may be reinforced by the agency 
of strata geologically on a lower horizon.” He goes on to S4J; 
“Till lately the best information available led me to the belief 
that the Trias-Jura formation, or Ipswich coal measures was aa: 
ceeded conformably by the Lower Cretaceous or Rolling Downs 
formation, but in the last trip I have seen unmistakable evidenc? 
of an unconformability between them. It may be that the bibulous 
