BY A. B. WALKOM. 1 45 



14.Jensen, H.I. — "The Building of Eastern Australia." Proc. Royal 



Soc. Queensland, xxiii., 1912, p. 149. 

 15-Pittman, E. F.— Rec. Geol. Surv. N. S. Wales, v., (1896-1898), pp.26 30. 

 16- Woolnough, W. G. — "Preliminary Note on the Geology of the 



Kempsey District." Journ. Proc. Royal Soc. N. S. Wales, xlv., 



(1911), p.159. 

 17. Walkom, A. B. — " Geology of the Permo-Carboniferous System the in 



Glendonbrook District near Singleton." Proc. Linn. Soc. N. S. 



Wales, 1913 ? p. 146. 



EXPLANATION OF PLATES VIII. -XIII. 

 Plate viii. 

 Comparative Series of Sections of Greta Coal-Seams south of Branxton. 



Plate ix. 

 Geological Map of Part of the Hunter River District, taken from the Map 

 accompanying Memoir of the Geological Survey of New South 

 Wales, No. 4; with Additions by A. B. Walkom, B.Sc. 



Plate x. 

 Map showing approximately the Western Limit of the Lower Marine Sea 

 in New South Wales. 



Plate xi. 

 Map showing approximately the Distribution of the land and sea during 

 the deposition of the Greta Coal-Measures in New South Wales. 



Plate xii. 

 Map showing approximately the extent of the Upper Marine Sea in New 

 South Wales. 



Plate xiii. 

 Map showing approximately the extent of the inland sea, in which were 

 deposited the Upper Coal-Measures. 



11 



