Trans. N.Y. Ac. Scé. 16 Oct. 31 
bed known is one about three feet thick, yielding a fair quality of bitum 
inous coal, which crops out and has been traced for several miles near 
the Clear Fork of the Brazos river in Young County. This supposed 
coal region has a general N. E. and S. W. direction. 
Approaching Graham the’ prairies begin to resemble the plains; and 
the ridges, capped with sandstone, show bases of mottled reddish-colored 
shales, or clay; salt springs and salt streams are found, indicating the 
border of the great alkaline region. From Graham to Fort Griffin in 
Shackleford County, thence north in Throckmorton County, the country 
rises. Every few miles a steppe is mounted, the face of the escarp- 
ments showing horizontal thin limestone strata. The same features 
continue, and then the country slopes towards the Brazos river. 
SCALE—52 MILES TO 1 INCH. 
A. Archer County. Wa. Wichita County. 
B. Baylor County. Wr. Wilbarger County. 
G. Clay County. c.¢. ¢. Copper Bed. 
fil. Haskell County. &. &. g. Gravel Drift. 
Hn. Hardeman County. n. Narrows. 
Turning westward through Haskell County, the surface lowers again 
towards the Brazos, the river coursing south to north, and a plain is 
crossed, the ground differing from any observed. The soil is mixed and 
covered with gravel, in many places several feet deep. The pebbles 
