ANNIVERSARY ADDRESS. 
By Professor THRELFALL, M.A., 
Professor of Physics in the University of Sydney. 
[Delivered to the Royal Society of N.S. Wales, May 1, 1895.] 
On looking back through the goodly list of twenty-eight volumes 
which form the Journal of the Royal Society of New South Wales, 
I find that it has been customary for your President in vacating 
the chair, to address you in the first place on the affairs of the 
Society, and in the second on such matters of general scientific 
interest as may have attracted his attention. I propose to follow 
the example which my predecessors have set, and shall accordingly 
commence with some notes on the history of the Society during 
the past year. In this matter I have had the advantage of the 
assistance of our indefatigable Assistant Secretary, Mr. W. H. 
Webb, for which assistance I desire to thank him. 
Tt is a matter of congratulation, that in spite of the bad times, 
our numerical strength has only fallen from four hundred and 
forty-five to four hundred and twenty. During the year we 
have elected eighteen members; we have lost twenty-seven by 
resignation, seven through default in payment of subscription’; 
ten ordinary and one honorary member through death ; the com- 
plete list of the last is as follows :— 
Ordinary Members : 
Dixson, Craig, m.p., elected 1880, 
Hall, R. T., elected 1878. 
Hills, Robert, elected 1879. 
Jones, E. L., elected 1877. 
Low, Andrew 8., elected 1880, 
Manning, Hon, Sir W. M,, m.t.c., elected 1881. 
Montefiore, E. L., elected 1875. 
A—May 1, 1895, 
