ee 
THE AUSTRALIAN NATURALIST. 103 
veins and nodules. The sandstone is traversed by nu- 
merous joints which are frequently filled with hydrated 
peroxide of iron derived from the decomposition of scat- 
tered pyrites crystals. These masses or nodules, through 
weathering, frequently assume the form of concentric 
shells of varying shades of iron oxide and producing 
characteristic features in the superficial structure of the 
Blue Mountain plateau. 
ANNUAL MEETING. 
5th August, 1919.—The President, Mr. F. W. Car- 
pnenter, M.A., occupied the chair, and about 90 were 
present. The office-bearers, as set out in the list printed 
on inside cover, were duly elected. 
The President delivered his annual address, taking 
as his subject, “Ihe Scientific Study of Scenery,” with 
special reference to the Grand Canyon, Blackheath. The 
address was illustrated with a very fine series of lantern 
slides from photographs taken by the lecturer, showing 
clearly how this canyon was formed by erosion by water 
acting on the jointed sandstone. Special attention was 
drawn to the presence in the canyon of a volcanic dyke, 
which, yielding to the action of the water, had altered 
the direction of the original watercourse. The lecture 
was extremely instructive and interesting, and opened 
up quite a new aspect of the subject to most members 
present. On the motion of Messrs. Waterhouse and 
Froggatt, the President was accorded a cordial vote 
of thanks for his very able address. 
ANNUAL REPORT OF COUNCIL. 
The past year has been one of considerable disap- 
pointment owing to the inability to hold meetings 
through Government regulations arising out of the visit- 
ation of pneumonic influenza. Only three meetings 
were held, those in October and November, 1918, and 
June, 1919. These were very well attended, and con- 
sidering the want of continuity, the June meeting evi- 
denced unabated interest in the Society’s work. Onl 
two lectures were delivered, one by Mr. Cheel, on “A 
