PROCEEDINGS OF SECTION C. 463 
the Rev. W. B. Clarke, F.R.S., Mr. C. S. Wilkinson, F.G.S., 
Professor W. J. Stephens, F.G.S., J. MacKenzie, F.G.S., and 
the Rev. J. Milne Curran, F.G.S., for New South Wales, 
by Mr. R. L. Jack F.G.S., and Mr. W. H. Rands for Queens- 
land, Mr. R. A. F. Murray, Mr. A. W. Howitt F.GS., 
and Mr. J. Stirling, F.G.S., for Victoria, and by Sir James Hector, 
F.R.S., for New Zealand. 
Appendix. 
Norse 1.—Since the above was written Mr. Wilkinson has 
made a geological examination of the Illawarra coalfield, which 
has led him to somewhat modify this view, and he now considers 
that a large portion of the Illawarra and Blue Mountain (western) 
coalfield is probably the equivalent of either the Newcastle or of 
the Tomago series. The author has also, since this paper was 
written, examined, for the first time, the Illawarra coalfield, and 
considers the Bulli coal-measures here, in their upper portion at 
any rate, to be the equivalents of the Newcastle coal-measures. 
The kerosene shale belongs, therefore, perhaps, to two distinct 
horizons, the lower one in the Greta coal-measures, and the upper 
one in the Newcastle or in the Tomago coal-measures, and cannot 
consequently be considered of so much classificatory value as was 
at first supposed. 
Nore 2.—This estimate gives the author’s approximate idea of 
the total gross quantity of coal contained in the Paleozoic coal- 
fields of New South Wales. These figures, however, should be 
taken as extremely approximate, and may be in excess of the true 
quantity. Mr. 0. S. Wilkinson has made the following estimate 
of future available coal in New South Wales :—‘ Within depth 
of 4000 feet the New South Wales coal-seams, over 24 feet thick, 
are estimated to contain, after allowing one-fifth for loss in 
working, at 78,198,200,000 tons.” 
Note 3.—That Gangamopteris is a younger type of plant than 
Glossopteris is a statement which appears to be open to grave 
doubts. Mr. R. Etheridge, junr., and the author have lately 
observed the occurrence of Gangamopieris at the base of the 
Ward’s River coal-basin, where Glossofterts is comparatively 
scarce, whereas the latter plant is very abundant in the upper 
beds of this same coal-basin. Also at Lochinvar, near Maitland, 
the same observers have collected a fossil plant, seemingly allied 
to Gangamopteris, from a low horizon in the lower marine series 
below the Greta coal-measures. The fact that Gangamopteris is 
a less highly organised type of plant than G/ossofteris would also 
suggest that the former antedates the latter. 
