XXX. ABSTRACT OF PROCEEDINGS. 



Mathews, who communicated the paper, remarked that it afforded 

 him peculiar gratification to have the opportunity of bringing 

 before the Society the labours of other investigators in the wide 

 but little known field of Australian anthropology. 



2. "The past droughts and recent flood at Lake George," by 



H. C. Russell, b.a., c.m.g., f.r.& 



It was shewn that at the end of 1874 Lake George was at its 

 maximum depth during the past seventy years, the depth then 

 being 24 ft.; from that date the water gradually decreased, rising 

 sometimes during heavy rains, and on 25th February, 1877, the 

 water was only 10 ft. 9 in. deep. At this time the author put up 

 a,n automatic gauge, which recorded every change until it became 

 too low for the machine to work, and exact measures were then 

 carried on by hand. Meantime the level varied with the seasons, 

 until in 1890, a very wet year, the lake was 12 ft. 11 in. deep ; 

 and after this the lake level fell faster than ever recorded before, 

 and on March 28th, 1900, the depth was only ft. 10 in., a fall 

 of 12 ft. 1 in. in six years. During 1895 the evaporation was 

 most rapid, the hot and windy weather carried the water away, 

 not only by evaporation but also as spray into the forest, and the 

 total loss of water in that year was 5 ft. 4 in. A loss of water 

 which can I think only be accounted for by the great heat and 

 force of the wind, which carried away great quantities of water 

 as spray. As proof that it was not due to percolation, 1 may 

 mention that, at my request, very careful observations were made 

 during the recent rise, when there were great fissures in the mud 

 which proved the dryness. As the water rose it was carefully 

 watched to see if it was percolating, and during the first day, 

 about one inch only was lost, and no further loss from that cause 

 could be discovered. 



3. " Note on an Obsidian ' Bomb,'" by R. T. Baker, f.l.s., Curator 



Technological Museum, Sydney. 



The specimen described in this note is not quite perfect — a 

 portion having been broken off when it was discovered. It has a 

 form quite unusual to those previously recorded from Eastern 



