98 PLANT HABITS AND HABITATS IN THE 



bouch on the eastern plain. Between them are ridges, often very long 

 and very narrow. 



The highest summit in the vicinity of Quorn is Mount Brown 

 (3,500 feet), although Devil's Peak is about as high. There are low 

 mountains just north of the village, and about 8 miles north Mount 

 Arden rises fairly precipitously. Not far from this mountain are in- 

 teresting gorges in the main mountain mass on the west. At one of 

 these is Depot Flat, where there is an interesting glacial till of pre- 

 Cambrian age, and another is Warren's Gorge, both of which were 

 kindly shown me by Mr. Jensen, engineer, of Quorn. The valleys 

 amid these hills and mountains are largely under cultivation, but the 

 higher land is used for grazing purposes only. From this sketch of the 

 general features of the topography at Quorn it can be rightly concluded 

 that the village is very picturesquely situated. 



The observations on the flora of the vicinity of Quorn were made from 

 the various roads which radiate out from the village, so that it will be 

 convenient to characterize the places visited by reference to the roads. 

 So far as possible, I have retained the names of the roads in common 

 use, but in one or two instances, when I did not know the name com- 

 monly used, I have given, names suitable to my purpose. The roads 

 are as follows: To the north of Quorn is what will be termed the Mount 

 Arden road, which goes through the Flinders at this point to the Lake 

 Torrens Plain, some miles beyond Mount Arden itself. The Port 

 Augusta road parallels the railway and goes up to and through the 

 Pichi Richi Pass. The Mount Brown road goes in a southwesterly 

 direction to Mount Brown, passing Devil's Peak to the south. The 

 latter lies between the two roads last mentioned. To the east of the 

 town the Hawker road parallels the railway to and across the Willochra 

 Plain, and lying south of this main road are two others, one here called 

 the Stephenston road, the other the Melrose road. Both of these go to 

 and onto the Willochra Plain, the former running east and west along 

 the south side of Quorn Creek and its terraces, and the latter going at 

 once over low hills to the plain. Thus there are about six main roads 

 leading away from Quorn, of which three go to the Great Valley Plain 

 to the east, and three into and between the mountains on the north and 

 west of the town. 



Although the rocks about Quorn are Cambrian, as the rest of the 

 Flinders Ranges mainly are, they are of various composition and the 

 soil derived from them is correspondingly varied. There are quartzite 

 ridges and slate hills, the latter being of a rounded contour. The soil 

 of the valleys around Quorn seems to be largely clay with a greater or 

 less admixture of sand. The low, rounded hills along the Melrose 

 road are underlain by a white material having the appearance of 

 travertine limestone, which it may be. Much of the soil of the Willo- 

 chra Plain is fine clay. 



