42 



FOREST INFLUENCES. 



Average, 



Haderslebeii, 

 Lintzel, 



Hdllerath, 



Schoo, - 



Lahnhof, - 

 Marienthal, 



Fritzen, - - 

 Friedrichsrode, 



St. Johann, 



Kurwien, 

 Carlsberg, 



Eberswalde, 



Sclimiedefchl, 

 Hagenau, - 



Sonneiihcrg, 

 Neiimath, - 



Melkerei, 



Scale of degrees. 



Scale of degrees. L 



' At surface. Al- six inches. 



(M 



I 



en 



I 



_1_ 



I 



_J 



-" At four feet. 



Fig. 1.— Differences of nuaii annual temperatures of soil (TT— O). 



