92 
TRANSACTIONS OF THE TEXAS ACADEMY OF SCIENCE. 
city of 2000 barrels of oil was erected. These were not made use of, as 
far as I can learn, and were finally moved. 
This oil was examined under the direction of Prof. Everhart, of the 
University of Texas, who pronounced it a useful lubricating oil, not 
adapted to the production of illuminating oil. 
A full description of these wells is given in the Second Annual Re- 
port of the Geological Survey. 
Similar oil is known in Shelby, Rusk, Anderson, and other counties, 
but has not been prospected for to any extent. In Anderson county the 
oil, by evaporation of its lighter portions, has left a heavy residue, lo- 
cally known as asphaltum, which can be used for paving, as is done with 
some of the California materials. Other similar localities will doubtless 
be found when proper examinations are made. 
While a number of occurrences of oil are reported from later horizons 
than those described, I have not yet been able to examine them, and on 
that account can not, at this time, give any definite information regard- 
ing them. 
