quite destitute of vegetation with the temperature consi('PrT-itel-y above 900 in the shade, no joke.

White Mud R., also called Riviere blanche or Frenchman's Creek & -well known among half-breed traders &c. Elk must have been very abundant here at one time. Saw a great many antlers lying about in different parts of the valley. Saw also traces of recent slaughter of buffalo. Many jackass rabbits.

Cromton explored this valley before our arrival at Woody Mt. & reported it utterly impracticable for crossing of carts near the line. Ashe seems to have found same thing & made detour to N. crossing. We shall have to go back Eastward to get out of range of lateral coul6es & then strike N. Westward to Traders Road running West from Woody Mt. & cross the White Mud at a favourable place some 15 m. N. of the line.

This season must be an exceptionally dry one here as I notice that where grass has ripened seed last year on the hills, this year it is showing no flower & even the leaves are scarcely green.

Geology. The tops of the banks on both sides of the valley of the White Mud are formed of yellowish sands, in some places hardened into layers of sandstone & nowhere very soft. Land slips have brought these sands down to various levels, but their original position can be clearly traced on both banks & as far up & down the valley as can be seen.

The upper beds in this valley must represent division C. in Section of June 29.

The thickness of the sombre clays is determined by aneroid (Mean of two obs.) from the water level to the yellow sands. About 273 feet. (0.30 Bar.).

Supposing the strata to be horizontal the rise in the general level of the country would appear to be sufficient to account for the recurrence of the yellow sands here. nearly 30 m. W. of their first appearance.

The Camp, which is situated a short distance down the Eastern slope of the ravine is 0.34 Bar. above the stream (White Mud, or about 309 ft) The camp, by the mean of seven observations at each place, is 445 ft. (0.49 Bar.) above the astronomical station 19 m. E.

The water in the White Mud being therefore 136 feet above the astronomical station.