Deep Well, Wheeling, West Virginia. 



235 



were lowered and raised, and depths measured by a steel wire. 

 Results : 





Table I. 





Depth 

 feet. 



Temperature 

 Fahr. 



Depth 

 feet. 



Temperature 

 Fahr. 



1350' 



68°'75 



3125' 



88°'40 



1591 



70'15 



3232 



89-75 



1592 



70-25 



3375 



92-10 



1745 



71-70 



3482 



93-60 



1835 



72-80 



3625 



96-10 



2125 



76-25 



3730 



97-55 



2236 



77-40 



3875 



100-05 



2375 



79-20 



3980 



101-75 



2486 



80-50 



4125 



104-10 



2625 



82-20 



4200 



105-55 



2740 



83-65 



4375 



108-40 



2875 



85-45 



4462 



110-15 



2990 



86-60 







100' 



51°-30 



These observations when plotted show a slow increase for 

 the upper half of the uncased portion, about 1° F. for 80 to 

 90 feet, whereas the lower part shows a more rapid increase, 

 about 1° F. for 60 feet. The whole series gives a well 

 defined and regular curve, with a deflection at 2900 to 3000 

 feet where an oil sand occurs. Practically all the rest of the 

 uncased well is in shale. The increase in the rate at which the 

 temperature rises as the bottom is approached can only be 

 temporary or we should have an inconceivable or improbable 

 state of temperature at comparatively slight depths. 



The two distinct series of observations combined in Table I 

 nowhere disagree more than o- 3 F. and hence are very re- 

 liable and accurate. 



Table II gives comparison of the results at the three great 

 wells. 



Xame of Well 

 and Location. 



Sperenberg, near Berlin, 

 Schladabach, near Leipzig, 

 Wheeling Development Co., 

 Top and greatest depths, 

 Mean of lower 3000 feet, 

 Mean of above two, 



Inasmuch as the bottom of the well is some 3700 feet below 

 sea level, it seemed worth while to attempt barometer readings 

 in it. The instruments used proved ill adapted to the work 



Table II. 









Feet for 



Total 



Temp. 



Temp, at 



1° F. 



depth. 



at top. 



bottom. 



59-2 ft. 



4170 ft. 



47°-8 



118°-6 



65-0 " 



5740 " 



51 -9 



135 -5 





4500 " 



5] -3 



110 -3 



74-3 " 



cc 







75-4 " 



cc 







74-9 " 



a 







