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MINNESOTA BOTANICAL STUDIES. 



Table I.— Temperatures of Air and Tree for January, 1894. 



Average Temperature of Air, Tree. 

 At 6-7 a.m. 10.84 9.37 

 At 12-1 P.M. 6.6 8.9 

 At 6-7 P.M. 9.2 7.5 

 For entire day 8.88 8.57 



