416 



EXPLANATION OF PLATES. 



[The Plates are from photographs taken by S. A. White.~\ 



Plate XXI. 



Fig. 1. — Dalhousie (small) hot mound-spring. 

 Fig. 2. — Dalhousie (large) hot mound-spring. 



Plate XXII. 

 Fig. 1. — A scene on the Lindsay Creek, west of the Telegraph 

 Line, and a little south of Charlotte Waters. 

 Fig. 2. — View of Lindsay Creek ,at Eringa. 



Plate XXIII. 



Fig. 1. — Stony desert, or "gibber" country, situated between 

 Macumba Station and Charlotte Waters. 



Fig. 2. — Distant view of Mount Benstead, MacDonnell Ranges 

 East. 



Plate XXIV. 

 Fig. 1. — Acute folding of rocks in the ranges near Arltunga. 

 Fig. 2. — An abrupt face of quartzite in the Hart Range, east 

 of the Hale River. 



Plate XXV. 



Fig. 1. — Precipitous cliffs in the valley of the Finke River 

 near Horseshoe Bend. 



Fig. 2. — Precipitous cliffs in the valley of the Finke River 

 near Horseshoe Bend, giving a nearer view. 



Plate XXVI. 

 Fig. 1. — The Finke River and cliffs at Running Waters. 

 Fig. 2. — The bed of the Finke River looking upstream in the 

 Krichauff Range. 



Plate XXVII. 



Fig. 1. — The Jay Waterhole, 'Jay River, MacDonnell Ranges. 



Fig. 2. — Vertical wall of rock, between Love Creek and the 

 Hale River, continuing for many miles almost parallel with the 

 MacDonnell Ranges. 



Plate XXVIII. 



Fig. 1. — Ruby Gap, Hale River. 



Fig. 2. — Emily Gap (through which a tributary of the Todd 

 River flows), east of Alice Springs, MacDonnell Ranges. 



Plate XXIX. 



Fig. 1. — Simpson Gap (through which a tributary of the 

 Finke River flows), west of Alice Springs, MacDonnell Ranges. 



Fig. 2. — Red Mulga (Acacia cyperophylla, F. v. M.). An 

 acacia reaching a height of about 20 ft. of very local distribution. 

 It is peculiar in having deciduous bark of a red colour which peels 

 off in flakes. 



Plate XXX. 



Fig. 1. — Branches of Red Mulga (Acacia cyperophylla, 

 F. v. M.), showing the characteristic deciduous bark peeling off 

 in curled flakes. 



Fig. 2. — Stinking Acacia, Giddea, or Gidgee (Acacia homa- 

 lophylla, A. Cunn.). 



