490 /. T. Jutsov.: 



Tlie main upper branch of the Dandenong Creek and the 

 Blind and Corhanwarrabul Creeks have a westerly course, 

 which is in opposition to the slope of the country. The upper 

 parts of the Dandenong Creek are also characterised by the 

 extensive flats at Bayswater, while lower down-stream, the val- 

 ley contracts and possesses the normal characters of somewhat 

 sluggish streams. The same remarks apply to some extent to 

 the Blind Creek, and apparently also to the Corhanwarrabul 

 Creek, but as the valley of the latter has not been fully 

 examined, some reservation must be made with regard to this. 

 This creek is not so important, as probably almost the whole 

 of its lower course is within the boundaries of the Senkungs- 

 feld. 



It is difficult to understand how on a rapid uplift such 

 courses could be formed ; the only explanation appears to 

 be that the streams are antecedent, and that the ui^lift being 

 gradual, they were able to maintain their directions notwith- 

 standing the opposing movement. As they have deepened their 

 channels, they are also revived streams. 



It will be noticed that no tributaries join the Dandenong 

 Creek from the west, Avhilst those from the east are well de- 

 velo^Ded. This is explicable, both from the present contour 

 and from that prior to uplift. The Dandenong Ranges having 

 a greater rainfall and a considerable area of high land, supply 

 a fair volume of water to form watercourses, and hence the 

 growth of the eastern tributaries. To the west of the Dande- 

 nong Creek, there is little ground not occupied by other drain- 

 age systems, and the countrj'' is at a low elevation. No tri- 

 butaries of any consequence can therefore be expected from the 

 western side. 



The Origin of the Bayswater and Scoresby Flats. 



The facts set forth as to the contour of the Dandenong Creek 

 area furnish an explanation of these flats as well as show the 

 antecedent character of the streams. 



Tlie flats referred to occur to the east of the Brushy Creek 

 Fault Scarp, and towards the eastern end of the gentle tilt 

 or dip farther south. As previously remarked, the Dande- 



