Sayles — Dilemma of Paleoclimatolo gists. 



±65 



Wells between 900-1200 feet. 



Iowa 



Depth 

 Temp. 



Air Temp. 



Depth 

 Illinois Temp. 



Air Temp. 



Depth 

 Indiana Temp. 



Air Temp. 



Depth 

 Ohio Temp. 



Air Temy. 



Depth 

 Pennsylvania Temp. 



Air Temp. 



Depth 

 New Jersey Temp. 



Air Temp. 



Oklahoma 



Louisiana 



Mississippi 



Alabama 



Florida 



Depth 



Temp. 



Air Temp. 



Depth 



Temp. 



Air Temp. 



Depth 



Temp. 



Air Temp. 



Depth 



Temp. 



Air Temp. 



Depth 



Temp. 



Air Temp. 



1125 



ill 62 

 50.2 



1000 

 65.4 

 49.3 



1050 

 60.5 

 49.4 



900 

 59 

 46.8 



1150 

 62 

 49.3 



1050 

 61.5 

 49.4 



1121 

 61 



49.4 



950 

 70 

 49.9 







1040 

 62 

 50.7 



1165 

 67 

 50.4 



960 

 59.5 

 49.3 



1200 

 61 



49.8 



1030 

 61.5 

 50 



1090 

 59.5 



48.3 



1125 

 56.3 

 48.3 



1244 

 67 

 53.6 





1020 

 84 

 60.4 



1010 

 78 

 60.3 



3100 ' 

 86 

 59.2 



1170 

 98 

 60.3 





975 



82 

 68.7 



1011 

 75 

 66 



996 



84 

 65.1 



900 

 79 

 6S.2 





900 



82,5 

 68 



1021 

 74 

 64.7 



1100 

 70 

 64.8 







1200 

 73 

 65.2 



930 

 79 

 63.7 









1020 

 81 

 68.2 



1031 



74 

 68.2 



900 



74 

 68 2 







Averages 



1053 

 61.8 

 49 



1040 

 64.1 

 49.5 



1040 

 62 

 50.7 



1165 

 67 

 50.4 



1081 

 59.5 

 49.1 



1244 

 67 

 53.6 



1075 



86.5 



60 

 970 



80 



67 

 1007 



75.5 



65.8 

 1065 



76 



64.4 

 984 



76 



South Average Earth Temperature 78. 8 



North " " " 63.5 



15.3 



South Average Air Temperature 65 



North " " " 50.4 



14.6 



degrees F. The average difference between the mean 

 annual air temperature of the stations in the northern 

 states (Xebraska, Iowa, Indiana, Ohio, Pennsylvania and 

 Xew Jersey) and the southern states (Texas, Louisiana, 



