56 THE DOMESTIC WATER FILTER, ETC. 



consider that the subject of Domestic Water Filters is probably 

 sufficient for one night, and hope in the future to take up the 

 question and deal with it fully. I may, however, be permitted 

 to draw your attention to this drawing of a self-cleansing tank, 

 which is the invention of John Tyler, of Yaamba, near Eock- 

 hampton. (The author exhibited and explained the drawing.) 

 In conclusion, I would urge all those who are obliged to use 

 tap water, to obtain one of the pressure filters I have mentioned. 

 It appears to be hopeless to expect that Brisbane will ever be 

 supplied with water fit to use direct from the tap, at all events 

 in our time, consequently we should as far as possible protect 

 ourselves and those belonging to us, by only employing water 

 for drinking purposes in the purity of which we can safely rely. 



CHEMISTEY OF ]]RIGALOAY GUM, 



By Dr. JOSEPH LAUTERER. 



[Read before the Royal Society of QueensJayid, April 20, 1895.] 



[The matter contained in this paper is included in a Bulle- 

 tin shortly to be issued by the Department of Agriculture.] 



THE CONGLOMERATE ROCKS OF WILD RIVER. 



By R. C. RINGROSE 



(Communicated by W. H. Ranks, F.G.S.) 



[Read be/ore the Royal Society of Queensland, May IS, 1895.] 



