X1V ABSTRACT OF PROCEEDINGS, 
ABSTRACT OF PROCEEDINGS, 24TH SEPTEMBER, 1923, | 
The Ordinary Monthly Meeting of the Society was: 
held in the Geology Lecture Theatre of the University 
at 8 p.m. on Monday, 24th September, 1923. 
The President, Dr, E. O. Marks, B.A., B.E., M.D., in 
the chair. 
The minutes of the previous Monthly Meeting were: 
read and confirmed. 
Dr. F. W. 8. Cumbrae-Stewart, B.A., Prof. T. Parnell, 
M.A., and Mr. T. W. Heney were nominated for member- 
ship 
Mr. F. B. Guthrie, F.I.C., was unanimously elected as. 
an ordinary member. 
¢ 9? 
Specimens of the Quetta “‘meteorite’’? were exhibited 
on behalf of Prof. Skertchly. The exhibit was commented 
upon by Prof. Richards. 
Prof. H, C. Richards, D.Se., read a paper by himself 
and Mr. W. H. Bryan, M.Se., entitled ‘‘ Permo-Carboni- 
ferous Volcanic Activity in Southern Queensland,’’ <A 
series of lavas and tuffs met with in the Silverwood-Lucky 
Valley area are dealt with in the paper. These rocks, on 
account of their resistance to weathering, are the 
dominating topographic forms in their immediate locality, 
and in some eases act as important divides. One outcrop 
measured 4,250 ft. in minimum thickness, and the authors. 
have reasons for assuming that the total thickness is much 
greater. Both the flows and the associated pyroclastic 
rocks are for the most part of an acid nature, and many 
beautiful examples of spheroidal and fluidal rhyolites were 
observed. More basic voleanics are represented in the 
upper part of the series, but in smaller amount. 
A vote of thanks was accorded the authors on the 
motion of Mr. L. C. Ball, B.E., seconded by Dr. H. LI. 
Jensen, and supported by Mr. Gurney and the President. 
ABSTRACT OF PROCEEDINGS, 29TH OcToBER, 1923. 
The Ordinary Monthly Meeting of the Society was 
held in the Geology Lecture Theatre of the University at 
8 p.m. on Monday, 29th October, 1923. 
