io8 



a country and to fix its zone of vegetation, not 

 only particular species of timber but also agri- 

 cultural plants may be used. For instance, in this 

 way the cultivation of the vine, rice, mulberry, 

 almond, &c., corresponds climatically to the 

 natural growing territory of the sweet chestnut ; 

 the cultivation of tobacco and maize corresponds 

 to the hottest territory of the oak in which the 

 sweet chestnut grows partly wild and is partly 

 raised. The cultivation of hops and wheat 

 corresponds to the cold territory of the oaks 

 and beeches. The cultivation of wheat and 

 rye corresponds to the warmest spruce zone, 

 that is, firs, spruce, or beech, whereas rye alone 

 or pasture land areas characterise the colder 

 domain of the spruce and larch. 



14. The pine, Pinus sylvestris, is no use for 

 judging the climate of any particular species, and 

 is to be found between the zone of evergreen, 

 sub-tropical, broad-leaved trees as far as the con- 

 fines of the Alpine or Polar forest regions. 



In conclusion, I may refer to a symptom I have 

 met with all over Europe, and which is more 

 convincing than any number of words, namely, 

 that plants thrive best, both indigenous and 

 foreign species of trees, where the planter devotes 

 himself impartially, lovingly, and patiently to the 

 raising of his charges. 



