PROCEEDINGS OE THE TEXAS ACADEMY OF SCIENCE. 
115 
represented by the Eureka Shale), and in it are set forth the difficulties 
of preparing an accurate geological map in a region composed of prac¬ 
tically horizontal strata very much denuded. 
The Geology of Benton County, Arkansas. (Read November 5, 1892.) 
This paper is an abstract of the author’s portion of a somewhat lengthy 
report having the same title published under the joint authorship of 
T. C. Hopkins and himself in Yol. II, Annual Report of the Geological 
Survey of Arkansas, for 1891. Little Rock, February, 1893; pp. 1-75. 
In it are briefly considered: (1) The Topography of the region—the 
northwest county of the State. (2) The Hydrography, including the 
river drainage, springs, many of which are large and strong, and wells. 
(3) The Rocks, which represent• the following formations: (i) Silurian, 
limestones and sandstones, (ii) Devonian(?), a bed of black shale, never 
exceeding 40 to 50 feet in thickness, known as the Eureka Shale, (iii) 
Lower Carboniferous: the Boone Chert and Limestone, the Wyman 
Sandstone, the Fayetteville Shale, and the Batesville Sandstone. The 
position of each, their mode of occurrence, and'many local details are ex¬ 
plained. 
The Fayetteville, Arkansas, Test Well. (Read June 19, 1894.) 
An abstract of the author’s investigation of the record and samples 
of a well 1480 feet deep sunk at Fayetteville, Ark., in 1891, with the. 
hope of finding natural gas or oil. This enterprise was undertaken con¬ 
trary to expert advice, after a thorough understanding of the order of 
stratification was possible from the work of the State Geological Survey. 
The result illustrates the fact that oftentimes the soundest geological con¬ 
clusions may be reached in an indirect way, for neither gas nor oil were 
found, and water even failed to reach the.surface. (See “Oil and Gas— 
The Deep Well at Fayetteville.” Annual Report of the Geological Sur¬ 
vey of Arkansas for 1891. Yol. II. Little Rock, 1894; pp. 66-69.) 
Floating Sand: An Unusual Mode of River Transportation. (An¬ 
nounced December 6, 1895. This paper is published in full in the 
American Geologist, Yol. XYII, January, 1896, pp. 29-37. Re¬ 
printed, without table, in Scientific American Supplement, Yol. XLI, 
No. 1048, February 1, 1896, pp. 16745-16746.) 
Abstract: Sand, mainly quartzose, was seen by the author floating on 
the surface of the Llano river at Bessemer, Texas, about 94 miles from 
Austin, on the morning of August 8, 1895. His interest being awakened, 
he immediately began an investigation of the phenomenon. Its occur- 
