534 GEOLOGY AND PETROGRAPHY OP CLARENCETOWN-PATERSOJJ DISTRICT^ ii., 



were to play the leading role. Such was the case during the early history of the 

 two large rivers, and to-day the same factors exercise important control over the 

 courses of almost all the tributaries. The heavy faulting of pre-Mesozoic time 

 must have had a great influence on the pre-Miocene or pre-Pliocene excavation, 

 but its effects are overshadowed by the influence of the differential hardness and 

 positions of tlie strata. 



List of Works referred to. 



Andrews, E. C, 1903. — Tertiary History of New England. Mec. Geol. Suru. 



N.S.W., 7, pt. 3, p. 140. 

 , 1922. — Presidential Address to Royal Society N.S.Yv'. Journ. Puiy. Soc. 



N.S.W., 56, p. 14. 

 Benson^ W. N., 1920. — Geology and Petrology of the Great Serpentine Belt of 



New South "Wales. Pt. ix. These Proceedings, xlv., p. 285. 

 Brovfne, W. E., 1921. — Note on the Relation of Streams to Geological Structure. 



Journ. Roy. Soc. N.S.W., 55. 

 Chamberlin, T. C. and Salisbury, R. D., 1905. — Geology, vol. i., p. 521. 

 David, T. W. E., 1904. — Geology of the Hunter River Coal Measures. Mem. 



Geol. Surv. N.S.W., Geology No. 4. 

 Geikib, J., 1905.— Structural and Field Geolog-y, pp. 169-74. 

 HoBBS, W. H., 1921. — Earth Evolution and its Facial Expression. 

 JAQUET, J. B., 1901.— The Iron Ore Deposits of New South Wales. Mem. Geol. 



Surv. N.S.W., Geol. No. 2. 

 Osborne, G. D., 1921. — A Preliminary Examination of Late Palaeozoic Folding 



in the Hunter River District. Journ. Roy. Soc. N.S.W., 55. 

 , 1922. — The Geology and Petrography of the Clarencetown-Paterson 



District. These Proceedings, xlvii., pp. 161-198. 



