79 
MISCELLANEOUS NOTES. 
Fossiliferous Sandstone from Cairncross Rocks. — Before the 
war-time construction of the dock, the Cairncross Rocks on the Brisbane 
River extended several feet above high-water mark, with banks of 
alluvium on either side. 
They consisted of poorly bedded argillaceous sandstones slightly 
tilted towards the river — that is, in a northerly direction. They were 
backed by a low sandy knoll, which was separated from the highlands 
of Bulimba by a swampy belt on the site of a former channel of the 
river. 
On lithological and stratigraphical grounds the sandstones had been 
relegated to the Triassic and tentatively correlated with the Bundamba 
sandstone, which should overlie the coal measures exposed downstream 
towards Doughboy Creek and on the Hamilton Hills across the river. 
The dock excavations revealed that, interstratified with the 
generally massive sandstone, there are lenticular beds of shale, at most 
2 ft. in thickness, some of which are coaly and yet almost completely non- 
f ossilif erous ; but unexpectedly the sandstones were found to be rich in 
plant stems and strap-like leaves, in many places massed and occasionally 
coalified. Mr. 0. A. Jones, who is palaeobotanist to the Geological 
Survey, advised me that at least one of them (a Schizoneura ?) might 
be a new form. 
L. C. Ball. 
Fossils from the Rocks at Cairncross Dock. — At Cairncross 
Dock a number of the common species of the Ipswich Series were found 
by Mr. L. C. Ball, but most interesting was a new species probably of 
the genus Schizoneura. This was larger than any described from 
Mesozoic deposits anywhere in the world. Many fragments of this were 
found, including one with the undivided leaf sheath attached. It is 
probable that most of the structure of the form can be reconstructed from 
the specimens. The assemblage indicates that the beds are part of the 
Ipswich Series. 
0. A. Jones. 
Two New Species of Equisetites. — Several specimens of two new 
species of Equisetites have been found at Brighton, near Sandgate. The 
material, though fragmentary, is very well preserved, and this has 
enabled much fine structure to be worked out, even the outlines of the 
cells of the epidermis of the sporangia being observed in one instance. 
Fertile specimens of Equisetites are uncommon, and the detail with 
which the structure of the cones and sporophylls can be worked out 
makes the find an important one. 
J. T. Woods. 
A Yellow Pigment from Denhamia Pittosporoides. — The root of 
Denhamia pittosporoides contains a yellow pigment. The properties 
of this latter agree with those described for celastrol, the pigment of 
Celastrus scandens , which is identical with tripterine, the pigment of 
Tripterygium wilfordii Hook. f. The powdered roots of the latter plant 
have been used in China for centuries as an insecticide ( J. Amer. Chem. 
Soc., 1942, 64, 182). 
H. J. G. Hines. 
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