82 GEOLOGICAL SURVEY OF ALABAMA. 
Upper Bench of Mammoth Seam at Henryellen. 
Moisture wsosss cas ceve secede ..... 1.526 
Volatile matter...............0.0008- 83.779 
Fixed CarbOM eo. icra ease nneeatemn nd 53.572 
ANY cc casy 5 bo naeplaiveiele orcernd demeotaneetea 1 133 BORE taiexenis eats 
100.000 
Sulphur-incoalncgs vers se aesnesateels sy 1.057 
Sulphur in coke................2.00. .509 
Per cent. of sulphur in coke....., aa 787 
By referring to the map accompanying this report, the 
location of the three horizontal sections are shown by dot- 
ted lines across this basin; the Adkins section in the north 
end of basin from “A” to “B”; the Henryellen section in 
the middle of the basin from “C” to ‘‘D’’; the DeShazo sec- 
tion in the south end of the basin from “E” to “F”. These 
all show the great disparity between the amount of coal 
measures in the fault vertical coal measures, and the 
measures of the interior of the basin, demonstrating that 
it is utterly impossible for the fault vertical coal measures 
to be a mere plication such as we find in the basins of the 
anthracite coal field in Pennsylvania. The accompanying 
map gives the form of the Henryellen basin as accurately 
as it could be made without taking the transit and chain 
and surveying the meanders of the boundary; the seams 
are also located as accurately as could be done without 
making a special instrumental measurement and location 
of each outcrop. 
These methods are always used by mining companys in 
making tne special surveys of their property, preparatory 
to mining development, since the success of their enterprise 
depends largely on the accuracy of the survey and exami- 
nation ; in fact, capital can not be safely invested in our 
coal mining operations without first making these special 
surveys with all the aids that modern science can give for 
the purpose of acquiring a full knowledge of the location 
and condition of the minerals to be mined. In my exami- 
nation, on the other hand, the area was too extensive to 
allow me to accomplish all these details, and in view of the 
fact, that in some days of these examinations, a human face 
