(35o) 



Cranberry Lake mean soil temperatures at 6 and i8 inches were 

 only .6° higher than temperatures at the same depths for the 

 same period under a distinctly cold spruce forest on Mt. Desert 

 Island, Maine. 



The comparatively small range in temperature appears to 

 indicate that small differences in temperature may be of con- 

 siderable importance to vegetation. 



