Sept., 1936. 
The Queensland Naturalist 
o 
in July in favour of a lecture given at the University by 
Dr. Jiri Baum. 
The number of books lent during that period has de- 
finitely declined, owing perhaps to the fact that few new 
ones have been added to the Library. During the year 
only 30 volumes have been lent as against 80 the previous 
year. 
There have been a few donations of books made to 
the Library. Miss G. Wood (a past member) sent a num- 
ber of works on Conchology, and Mr. J. Nebe and Mr. G. 
H. Barker have continued their contributions of magazines. 
I would suggest that, as magazines seem to be by far 
the most popular form of literature borrowed, the Club 
adds the English “ Geographical Magazine”, and the 
” Walkabout” magazine to the Library. These would, I 
am sure, be a most welcome and popular addition to the 
Library. We cannot, owing to lack of space, add too many 
books to the Library, but a large number of magazines 
can be accommodated in a space occupied by but a few 
books. 
G. H. BARKER, President. 
(Miss) E. E. BAIRD, Hon. Secretary. 
EXCURSION TO UPPER ALBERT RIVER, 
EASTER. 1936, GEOLOGICAL NOTES 
By E. 0. MARKS , B.A., M.D. 
From the geologist's point of view the great attrac- 
tion of the excursion to the Upper Albert was the oppor- 
tunity it gave to investigate further the problem of the 
age or ages of the volcanic rocks of south-east Queensland. 
This problem has already been discussed in the notes on 
the previous excursions to Canungra and Numinbah. 
For those who are not familiar with the local geology 
or have not the previous notes at hand, it may be recalled 
tnat the mountainous region of the Lamington National 
Park and its vicinity, is formed by the remnants of a for- 
merly continuous plateau of volcanic materials resting on 
a basement of mesozoic sandstones and shales, and on the 
still older schist series. This volcanic plateau has been 
cut into by . the streams, the resulting valleys in many 
places exposing the underlying sedimentary rocks. The 
streams have "dissected” the formerly continuous plateau 
into the mountains and smaller plateaus as we now know 
them. In some places denudation has gone so far that 
only a comparatively low ridge separates the adjoining 
