NOTICE. 
Tue Royat Society of New South Wales originated in 1821 as 
the “ Philosophical Society of Australasia”; after an interval of 
inactivity, it was resuscitated in 1850, under the name of the 
_ Australian Philosophical Society,” by which title it was known 
until 1856, when the name was changed to the “ Philosophical 
Society of New South Wales”; in 1866, by the sanction of Her 
Most Gracious Majesty the Queen, it assumed its present title, 
and was incorporated by Act of the Parliament of New South 
Wales in 1881. 
« 
NOTICE TO AUTHORS. 
The Honorary Secretaries request that authors of papers (to be 
read before the Royal Society of New South Wales) requiring 
illustrations by photo-lithography, will, before preparing such 
drawings, make application to the Assistant Secretary for patterns 
of the standard sizes of diagrams &c. to suit the Society’s Journal. 
ERRATA. 
Page 222, line 5, instead of 3°578, read 3°534 
ecuae We eS = 8°578, ,, 3°534 
er > * 99 3°578, ,, 3°534 
