PROSSER. | Cretaceous.—Comanche Series of Kansas. 101 
it to the Trinity division in any way, until the Indian Territory in- 
terval has been explored, is of course merely a supposition however 
probable.” 
The latter part of the paper describes quite fully the distribu- 
tion and stratigraphic characters of the shales between the 
Cheyenne and Tertiary. This outcrop is described as very irregular, 
beginning in the northwestern part of Barber county, near the head- 
waters of the Medicine Lodge river and extending in an irregular 
line from that locality across Comanche and Clark counties to the 
eastern part of Meade county. The thickness of these shales is 
given as variable, nowhere exceeding 150 feet, their maximum being 
in Kiowa county south of the Medicine Lodge river. Sections of the 
Cretaceous are described at Belvidere and Blue Cut Mound in Kiowa 
county, and upper West Bear creek and Bluff creek in Clark county. 
The sections are divided into zones, the lithological characters of 
which are described together, with lists of the more characteristic 
fossils occurring in them? | 
Hay, 1590.— During the summer of 1885 Professor Hay, under 
the direction of the U.S. Geological Survey, studied that portion of 
Ikansas south of the Arkansas river. The description of this work 
was not published until 1890, when it appeared as a builletin of the 
U. S. Geological Survey entitled “A Geological Reconnaissance in 
Southwestern Kansas.’”? 
The “Geological Map of Southwestern Kansas” accompanying 
this bulletin represents the formations of the country south of the 
Arkansas river as belonging to the Jura-Trias, Cretaceous, Tertiary 
and Pleistocene systems. The line of division between the Jura- 
Trias and Cretaceous or between the Jura-Trias and Tertiary where 
the Cretaceous is not represented, extends in an irregular line from 
Stafford county through Reno, Kingman, Pratt, Barber, Kiowa, 
Somanche, Clark and Meade counties to the state line. Professor 
Hay described the Dakota formation near the Barber and Comanche 
county line as “being mostly composed of yellow, greenish, white 
IL JN syGlo, TOS (AB) 70; : 
2 For the description of these sections see Ibid., pp. 75, 76, 77 and 79. The above 
article was republished in the American Geologist for October 1890 and June, 1891; in 
Vol. VI, pp. 233-238, and Vol. VII, pp. 23-38. 
A SOLE: Hay, Bulletin U. S. Geological Survey, No. 57, pp. 49 and Map, Wash- 
ington. 
