64 



FOREST INFLUENCES. 

 Tree-top temperature differences woods and open Jields ( Jl — 0). 



_8UMMER. 



Fig. 24. — rricdriclisrode. 



Fig. 25.— Eberswalde. 



Fig. 26.— St. Johann. 



..MINIMA. 



.MEAN. 



, MAXIMA. 



Fig. 27,— Carlsberg. 



