Introductory. 7 



rhile, owing to a different historical backgroimd and to 

 pfferent political and social conditions, none of their 

 dministrative methods and measures may appeal to ns, 

 e principles underlying them as well as those imderly- 

 ng their silvicultnral methods remain the same and 

 78 applicable everywhere and can best be recognized 

 ad studied in the history of their development. 



\h' 



