572 NOTES ON THE NATIVE FLOKA OF NEW SOUTH WALES, Vlll., 



Analysis of Quartz- Felsite from Colong (Yerranderie). 



per cent. 



Silica 



Alumina 



Ferric oxide 



Ferrous oxide 



Magnesia 



Linie •• 



Soda 



Potash 



Water(110°C) 



Water (1 ICC + ) .' 



Carbon dioxide 



Titanium dioxide 



Zirconium dioxide 



Phosphoric anhydride 



Sulphuric anhydride 



Chlorine 



Fluori ne 



Suiphur(FeS„) absent 



Chromium sesquioxide absent 



Nickel and Cobalt protoxide absent 



Manganous oxide 0'08 



Baryta Oil 



Strontia Jtrace 



Lithia dioxide Jpresent. 



Vanadic oxide trace (less than 001 %). 



100-39 



:!: Spectroscopic reaction only. Specific gravity— 2701. 

 This quartz-felsite is the rock referred to by Barrallier as 

 granite and blue granite; and the sample from which the above 

 constituents were obtained, came from the exact locality where 

 he records, on the 30th November, 1802, as follows :—" During 

 this day I picked up a quantity of new plants."* 



Between Colong and Mount Werong, the following plants were 



noted by me :— 



Ranunculace^ : Clematis aristata. 



D1LLENIACE.E: Hihhertia voluhUis, II. serpyUifolia R.Br., 

 (on the Big Plain, east of Mount Werong), //. linearis var. 

 oh tusi folia. 



V10LARIE.E: Viola betonico' folia, V. hederacea. 



PiTTOSPORE^: Marianthus prorumbens Benth. 



Caryophylle.*: : Stellaria pungens. 



» Historical Records, New South Wales, Vol. v., pp.793, 795, 807. 



