BY T. GRIFFITH TAYLOK. 



52T 



rotating at very different speeds. Since the flow is not controlled 

 very greatly .by the slope — many square miles being practically 

 flat — and since the influence of hard strata is practically wanting, 



Fig. 3. — Fen-el's law of deflection applied to the rivers of the Western Plains. 



one can readily understand that the earth's rotation becomes a 

 prime factor in determining the course of the rivers (vide n'g.3). 



The two rivers least affected are the Murrumbidgee and the 

 Murray, which is what one would expect, since their course is 

 practically at right angles to the meridians, and so the rotational 

 factor has least influence. 



The above hypothesis, though not connected with the Coal 

 Measures of the State, seems of sufficient interest and importance 

 to be introduced here. 



In conclusion I would like to thank Dr. W, G. Woolnough, 

 F.G.S., for help in preparing illustrations, and Professor David, 

 F. R.S. To lectures by the latter I owe my knowledge of the 

 fundamental principles involved in this paper, and I desire to 



