Geology of Jefferson County, Texas. — Kennedy. 273 
Feet. 
9. Blue sandy clay 18 
10. Grayish blue sand 12 
11. Grayish blue sandy clay 15 
12. Blue sandy clay 15 
13. Coarse grayish blue sand with iron pyrit.es 10 
14. Fine grayish blue sand, gray when dry 25 
15. Blue sandy clay with iron pyrites, small tiow of sul- 
phur water and small quantity of hydrogen 
sulphide 5 
16. Gray sand containing great quantities of coarse 
black siliceous pebbles from }± to 1 inch in diam- 
eter and some fragments of rotten wood 10 
17. Fine-grained gray sand with small pieces of wood. . 28 
18. Bluish gray sand to bottom 162 
Total depth 100 
No shells of any sort were obtained from the well. 
The five feet between 55 and 60 feet ( No. 5 of section ) con- 
tained a considerable quantity of hydrogen sulphide, but be- 
sides its being extremely soft no other peculiarity was noted 
in the large well. It was only after another small hole had 
been bored down to it that the actual condition of this stra- 
tum was ascertained. For some purpose or other a two and 
one-half inch hole was bored about 15 feet from the south side 
of the derrick to a depth of (50 feet and a casing inserted. On 
the completion of this boring a small quantity of gas issued 
from it for several hours. With the view of seeing whether 
tlie end of the casing had passed the gas-bearing sands tin- 
tube was raised about ten feet. This caused a heavy volume 
of gas to flow, which within an hour or two brought up large 
quantities of a fine. blue, sandy mud in a very liquid condi- 
tion. This outflow of gas and mud formed a veritable mud 
geyser, which shot up to a distance of 15 or 20 feet above the 
mouth of the tube at intervals of from three to five minutes. 
When not ejecting mud the gas, if ignited, burned witli a 
bluish flame, from 8 to 10 feet in length. The extremely of- 
fensive smell from the excaping gas and the almost incessant 
spray of mud became so disagreeable to the men working 
around the Machinery that it became necessary to plug the 
small boring. Occasionally, however, during the three months 
of my stay, when the work was stopped, the plug would be 
removed and the gas and mud allowed to issue. During the 
whole of that time there appeared to be no cessation of activ- 
