ABSTRACT OF PROCEEDINGS. XV. 
hardest gneiss is crushed under a pressure of 7,000 feet 
equal to 7,770 tbs. per square inch, whereas granite can 
stand a pressure of from 10,000 to 14,000 Ibs. to the square 
inch before crushing. Pari passu the more resistent Welsh 
slate would require 18,918 feet of similar pressure to crush 
it, that is at a depth of a little more than 3} miles. It is 
probable, therefore, that at a depth of 4 miles every descrip- 
tion of rock would be crushed as at 35 miles depth with an 
increment of 67°5* F., the temperature would be 280° F., 
and at 4 miles, over 301° F. 
2. ‘“‘The composition of some lime-sulphur sprays made 
according to recognised formule,’’ by A. A. RAMSAY. 
(Communicated by Mr. F. B. GUTHRIE.) 
Remarks were made by Mr. HAMLET. 
3. *“‘On the diffusible phosphorus of Cow’s Milk,’’ by H.S. H. 
WARDLAW, B.Sc. 
Remarks were made by Professor CHAPMAN, Dr. QUAIFE 
and Mr. HAMLET. 
EXHIBIT. 
Mr. OLLE exhibited some examples of a condensation 
product of phenol. Remarks were made by Mr. CLUNIES 
Ross. 
ABSTRACT OF PROCEEDINGS, SEPTEMBER 2nd, 1914. 
The three hundred and sixty-eighth (368th) General 
Monthly Meeting of the Royal Society of New South Wales 
was held at the Society’s House, 5 Hlizabeth-street North, 
at 8 p.m. 
Mr. C. HEDLEY, President, in the Chair. 
Thirty-four members and seven visitors were present. 
The minutes of the preceding meeting were read and 
confirmed. 
