[Proc. Roy. Soc. Victoria, 31 (N.S.), Part I., 1918]. 



Art. IX. — Tlie Physiography of the Werribee River Area^ 



By CHARLES FENNER, D.Sc. 



[Eead 11th July, 1918]. 



(With Plates XI. and XII., and 40 text figures). 

 I. Area dealt with. 

 II. General Considerations. 



III. Previous Literature, Acknowledgements, &c. 



IV. History, Early Settlement, and Nomenclature. 



V. Rainfall, Watek. Supply, &c. 



(a) Rainfall. 



(b) Evaporation. 



(c) Run-off, etc. 



(d) Water storage. 



(e) Sediment carried. 



VI. Introductory Survey of the Whole Area. 



(a) Definition of blocks A and C. 



(b) Definition of block D. 



(c) Definition of block B. 



(d) Definition of block E. 



VII. The Rocks of the Arka. (Age, nature and resistance to erosion.)- 



(a) Lower Ordovician. 



(b) Granites and Granodiorites. 



(c) Permo-Carboniferous. 



(d) Older Basaltic lava flows. 



(e) Middle Tertiaries. 



(f) Newer Basaltic lava flows. 



(g) Recent Gravel, Sands, and Soils, 

 (h) Dykes of various ages. 



VEIL Dominant Physiographic Features. 



(a) The Peneplain, its date of completion. 

 (i.) Introductory. 



(ii.) The Peneplain as an Australian feature, 

 (iii.) Age of the Uplift. 



(a) Physiographic evidence. 



(b) Palaeontological evidence. 



(c) Previous Victoidan opinions. 



(d) Conclusions. 



