356 T. W. E. DAVID, F. B. GUTHBIE, AND W. G. W00LN0UGH. 



(Orange 1) Co., Wellington. These spots were probably observed 

 by the late Rev. W. B. Clarke. 



Mr. G. W. Card, Assoc e.s.m., f.g s., Mineralogist to the Geological 

 Survey of New South Wales, has informed us that he has lately 

 observed nepheline in basalt from the following localities in New 

 South Wales: — (1) at "The Peaks," Burragorang, where the lava 

 occurs as a thin capping at the top of the mountain; (2) at Glen 

 Alice, Capertertee ; and (3) at Sapling Flat Creek, Capertee. 



Mr. G. W. Card has also identified nepheline in large quantities 

 in a rock just discovered by Mr. J. E. Carne, f.g.s., of the 

 Geological Survey of New South Wales. The locality of the 

 discovery is Portion 34 in the Parish of Barigan, about fourteen 

 miles from the railway station Lue, on the Wallerawang to Mudgee 

 Line, in N. S. Wales. In hand specimens the fine grained type of 

 the Barigan rock is strikingly like that of Kosciusko. Mr. Card 

 very kindly placed thin slices of this rock at our disposal, so that 

 we might institute a comparison between it and that of Kosciusko. 

 Since this, however, fresh discoveries on a much larger scale of 

 highly interesting nepheline rocks, which Mr. Card considers 

 allied to tinguaites, have been made in the same district by Mr. 

 J. E. Carne. 1 Mr. Carne states that there are several mountains 

 of nepheline rock in this locality over 1,000 feet high, from base 

 to summit, and intrusive into the Permo-Carboniferous and 

 Triassic rocks. Under these circumstances as the Barigan rocks 

 will merit a special memoir, in all probability, it would be pre- 

 mature for us to attempt a description of them, except very briefly. 



On comparing the sections of the fine grained variety of rock 

 from Barigan with that of Kosciusko, one is struck at once with 

 the absence from the former of inclusions of other rocks, the 

 Kosciusko rock being remarkable for the amount of mineral 

 matter, especially felspar, which it has borrowed from the sur- 

 rounding gneissic granite. The Barigan rock does not exhibit 

 under the microscope as numerous sharply defined sections of 



1 Card, G. W.— Records Geol. Survey, N. S. Wales, Vol. vii., pt. 2. 



