‘- 
“in the report 
370 J. J. Stevenson—Fox Hills Group of Colorado. 
Here again is a fine exposure of the sandstone which shows a 
gentle east-northeast dip. The section up to the St. Vrain is as 
follows, the thicknesses being estimated : 
F. Veuow sandsione...25 oi... 6. dc cs 0 ek 
a ee BO a cl 
S, Concealed oo. o03.<: Cerca: ce Og 
4, Yellow sandstone .._._--- ee eae Oa 
6... Gray to bine sandstone... ..... 45+ -s-5 BO... 
ey es nee snl LOU e 
No. 1, the sandstone already referred to as occurring in the 
bluffs both north and south from the Thompson, is bright 
Park, that one might well be tempted to imagine that they 
are parts of one series, and that the series is continuous along 
the whole face of the mountain. 
fragments of carbonized wood, and frequently one finds in such 
layers oblong cavities, six inches long, filled with carbonaceous 
impressions of dicotyledonous leaves. But the leaf specimens, 
with nearly all the other specimens obtained during that visit, 
* Notes on the observations made in 1873 were published in the Proc. Lye. 
Nat. Hist. of N. Y. for Jan., 1874; in the Proc. Amer. Phil. Soc. for 1875; and 
ta Lt. Wheeler, published in 1876. 
eee 
