FORESTRY IN SWITZERLAND. 

 RATES OF FOREST GROWTH. 



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In various parts of Switzerland experiments have been carefully instituted 

 to determine the rates of growth of different species of trees at various alti- 

 tudes and exposures. The results of these have proved both interesting and 

 valuable. The following table includes such as pertain to the canton Zurich : 



J!ates of periodical growth of seven different species, by decades (Zurich). 



