29 30- 24 Grey sandy clay

30 Blackish plant bed 1'

31 12-6 10 Dark shales with Carbonaceous bands

32 Black Carb. shales 2 '

33 2-6 2 Grey sandy clay

34 Carb. shale 1'

35 8-6 7 White-grey sandy clay with irregular ironstone sheets

36 21- 17 Grey & yellow sandy clays with some remains of Ostreas? in the lower layers.

537

Beds again become horizontal in about 50 feet. The last mentioned layers appear to graduate into the Sombre Clays, but are not very well exposed.

N.B. The numbers on the left are paces, & each figure relates to the line following it. The numbers to the right are feet & express the thickness of the bed at right angles to the dip, as estimated.

T'he valley of W. Fork though with some scarped banks shows drift only.

July 19. Started about 6.30 A.M. & travelled West over a plain composed of hard sandy clay & dry flat bottomed ponds almost destitute of vegetation. Cactus abundant. Some stretches sandy in character & there various species of sage brush abound most. The sand seems to form hillocks & low ridges superficial to the clayey matter which is probably derived from disentegration of Long R. Shales or Sombre Clays

Finding the water at the point 8-2 miles w. of our camp on the W. Fork bad & most of the grass in the hollow (where alone feed) cropped by