PRESIDENTIAL ADDRESS. 
By H. C. ANDREWS, B.A., F.G.S. 
[Delivered to the Royal Society of N.S. Wales, May 38, 1922. | 

——= 
DURING the year the work of the Society has progressed 
ina most satisfactory manner. Hight meetings were held; 
twenty-four papers were read; the attendance of members 
was satisfactory, and the discussions of many papers pro- 
ceeded with interest. | 
The various sections held highly successful meetings, | 
due to the unflagging energy of their various secretaries. 
Popular science lectures were delivered:—*‘The Abor- 
igines of Central Australia,’’ by Captain S. A. White, on 
June 7th; “The Hconomics of the Australian Vegetation, 
Irrespective of Timber,’’ by H. G. Smith, F.c.s., on July 
- 21st; “‘Flies as Disease Carriers,’”’ by Dr. EK. W. Ferguson, 
on August 18th; ‘‘Calculating Machinery,”’ by G. A. Julius, 
B.Se., on September 15th, 1921. 
The Centenary of our Society was celebrated on the 7th 
December, and His Excellency Sir Walter Davidson, the 
Governor of the State and Vice-Patron of the Society, 
attended by Major Egerton, was the chief guest. Short 
addresses dealing with the early history of the Society, 
together with the first papers presented, were delivered by 
Mr. R. H. Cambage, Professor W. HK. Cooke, Professor Sir 
Edgeworth David, Mr. C. Hedley, Mr. J. H. Maiden, and 
Dr. J. F. Watson. 
On the 10th of the same month the Centenary was also 
fittingly observed by a visit to Kurnell, the principal 
A—May 3, 1922. 
