ABSTRACT OF PROCEEDINGS. XXX1, 
edges, and also encastré, the modulus of elasticity being 
determined for each case. — 
4. “The Aboriginal Fisheries at Brewarrina,’’ by R. H. 
MATHEWS, L.S. 
The author gave an exhaustive description of the con- 
struction, and the method of using these interesting 
examples of native workmanship; a plan was referred to 
showing the position and shape of the fishing traps or pens 
in the bed of the river Darling. Brief reference was made 
to the wearing away of the rocky bar across the river, thus 
forming numberless boulders of different sizes, which were 
used by the aboriginal builders in constructing the traps. 
On account of the lateness of the hour, the following 
were postponed to the next meeting :— 
5. “The Geology of the Mittagong District,” by T. GRIFFITH 
TAYLOR and D. Mawson, B.E. [Communicated by Prof. 
T. W. E. DAVID, B.A., F.R.S. | 
6. “The separation of Iron from Nickel and Cohalt by Lead 
Oxide (Field’s method),’’ by T. H. Lasy. [Communi- 
cated by Prof. LIVERSIDGE, M.A., LL.D., F.R.S. | 
6. “‘Pot experiments to determine the limits of endurance 
of different Farm-crops for certain injurious substances, 
Part Il. Maize,”’ by F. B. GUTHRIE, F.I.C., F.C.S., and 
R. HELMs. 
CONVERSAZIONE. 
A Conversazione was held in the Great Hall of the 
University, on Thursday, 27th August, at 8°30 p.m., under 
the management of the Officers and Council of the Royal 
Society. The Hall and approaches were tastefully decorated 
with palms, ferns, and rare pot plants. 
The University grounds were illuminated with electric 
light and fairy lamps, thus enabling the guests to visit the 
