5,50 APPENDIX. 



group of sand-hills, many of which were conical and 

 partly covered with grass. 



Three isolated mountains of gneiss were seen about 

 forty miles from the east end of Lake Beechey; and 

 a few miles lower down, on the opposite side to these 

 mountains, is the ingress of Baillie's River. The 

 country now became low, flat, and very sandy, with 

 an occasional smooth hill rent into watercourses ; and 

 not more than half a mile from each other, were the 

 obtuse and rounded tops of a few dark rocks, that peeped 

 above and chequered the surface of the yellow sand. It 

 then changed to a mass of rocks, (Hawk Rapid,) between 

 which the current ran with extreme violence, but with- 

 out much change of general direction. The specimens 

 from this place consist of reddish granitic compound 

 approaching to gneiss. 



Beyond these rapids, several rivers joined from both 

 sides, and the main stream expanded into an extensive 

 sheet of water (Lake Pelly), with clear horizons at dif- 

 ferent points of the compass. There were here many 

 islands; and the ridges and cones of sand of which 

 they were composed were not only of considerable 

 height, but most singularly and remarkably crowned 

 with immense granite boulders, grey with lichen. 



A succession of dangerous falls and rapids follows this 

 series of lakes, the course of which is very tortuous; but 

 the main direction, from the beginning of Lake Pelly to 

 Lake Macdougal, is nearly from west to east. At Rock 

 Rapid, in latitude 65° 54-' 18", longitude 98° 10' 7", the 

 river bursts with fury between four mountains of reddish 

 granite, and turns short to the north. 



The stream now became from half a mile to a mile 

 in width, with fearful rapids and whirlpools ; and the 

 adjoining country was far more rugged and mountainous 



