See also notes on similar Septaria seen at Pembina Mt. Astronomical Station.)

About 100 feet below the base of the yellow sands found a layer characterized by occurrence of Ostrea [clams] in great numbers. Also by fragments of moceramus [?]. Collected a number of the former. Many of them are perfect with both valves lying together, showing evidently that they died where now found. They were most abundant on a slope of bare crumbled clay at the foot of a hill. The clay had been drifted smooth by the wind & it required little imagination to suppose that one stood on the actual beach where the shells had been thrown up.

Much selenite in the sombre clays as here developed & in some places horizontal white streaks like those described in the valley 7 m. E.

The fibrous mineral also occurs here in quantity forming discontinuous layers parallel to the stratification, & to which the fibres stand at right ancles.

The quartzite drift has very generally cruite the appearance of beach shingle. being well rounded & polished & not showing any evidence of glaciation.

The largest boulders are always of granite, gneiss &c. or limestone & the latter often have well preserved glaciation. (Siliceous pebbles never attain size of large boulders.) Notwithstanding the shingly character of the siliceous pebble drift it must be ice borne & belongs to some formation unknown to me. It may come like the granite & gneiss from the Northward & be prevalent on the heights S. of the Coteau & on the Coteau itself from circumstances of elevation of source or some other reason; or may come from flanks of Rocky Mts to West.

The pebbles in the drift everywhere from Lake of Woods to this point are almost invariably crusted with carbonate of lime, a circumstance doubtless due to the abundance of limestone fragments.

Camp White Mud R.

8 A.M.

B. 26-81

T. 68

S.W.light. Clear

13 m. W. camp on creek

1.30 PM

26.87

80

S.W. Cloudless Camp 2 m. W. Astron Stn

9.15 PM

27.00

64

Calm Clear

July 6. Occupied changing plants & packing away those quite dry &C.

Found on arriving here yesterday that Red R. cart had been broken beyond repair in moving my heavy stuff to this camp. Got the remnants brought into camp. Capt. LH & party arrived about 4 PM. Discussed