DETAILED RECORDS. 231 
Feet. 
andstone 193 -195 
hale ' 195 -210 
oft gray sandstone. 210 -220 
hale T 220 -225 
[ard white sandstone 225 -260 
rystal rock (soft limy shale containing quartz crystals). 260 -266 
hale 266 -268 
oft gray shale. 268 -271 
[ard white limestone 271 -274 
Jhite shale or slate, mixed with lime 274 -279 
[ard white limestone 279 -283 
ery hard blue limestone 283 -285 
-lack slate .' 285 -287J 
, No. 12. '.. 287|-291 T V 
6.30. Well near- Edmonton, Metcalfe County. 
Veil begun in May, 1905; completed in July, 1905. Authority, H. L. Sturm, contractor. Incomplete 
of samples preserved. Geologic correlations by E. O. Ulrich.] 
The rocks penetrated are included in the Tullahoma limestone (Mississippian), Devonian 
lack shale, and Devonian, Silurian, and Ordovician limestones. 
Record of well No. 1 on J. A. Hamilton farm, 2 miles east of Edmonton. 
'ullahoma: Feet. 
Limestone 0- 205 
)evonian: 
Black shale 205- 245 
Speckled limestone 245- 265 
ilurian and Ordovician: 
Gray to light-brown limestone 265- 887 
Soft magnesian limestone, known as " Pencil cave " 887- 893 
Hard white limestone 893-1, 000 
Gray limestone 1, 000-1, 475 
White and brown limestone 1 , 475-1 , 575 
Brownish-gray crystalline limestone, cherty in upper portion and sandy 
below 1,640 feet '. 1, 57.5-1, 653 
Rig used, cable. Diameter of casing, 6| inches; length, 250 feet. First water at 80 feet; 
ulphur water at 219 feet. Small show of oil at 30 feet. 
I 
MAINE. 
666. Well at Fort Levett, Cumberland County. 
Well begun July 7, 1905; completed October 31, 1905. Authority, Capt. A. W. Gates, quartermaster. 
I Samples preserved.] 
This well is of interest from its being sunk on an island in Portland Harbor, at a point 
inhere, previous to an investigation of the occurrence of underground water in rocks of 
imilar character on islands in Portsmouth Harbor, it had been thought that a sufficient 
upply of potable water could not be obtained by drilling. The rocks comprise metamor- 
phosed sediments and intrusive igneous rocks. 
Record of well at Fort Levett, 3 miles southeast of Portland. 
Feet. 
oil 0-18 
vledium hard to hard dark sandstone 40- 50 
'lard light sandstone or gneiss 50- 60 
lard blue rock . 60- 80 
