66 



instance, in this country they are very often 

 planted in highly cultivated gardens, where they 

 enjoy the benefit of enclosures already pro- 

 vided. 



4. In cases where these were not grown pure 

 planting of the foreign specie singly amongst the 

 native trees already there was often adopted for 

 promoting their growth, the result of which 

 was that the exotics were overgrown and for- 

 gotten. 



5. It is not very clearly discernible from the 

 reports that any number of failures in Germany 

 must be traced not to the climate, soil, or method 

 of treating the wood, but simply and solely to the 

 depredations of wild animals in German forests. 

 On the other hand, it appears very plainly from 

 the experiments that American spruces, firs, 

 larches, oaks, elms, maples, and ashes were 

 subject to the same physiological sylvicultural 

 laws as their corresponding European arboreal 

 kindred ; that all these American timbers can be 

 grown in Europe under identical precautionary 

 measures as those adopted for the home-grown 

 species, that they can be subjected to the same 

 methods of treatment as the indigenous trees, 

 and that their output is equal to that of the 

 corresponding native kinds of timber in point of 

 durability, shape, and excellent quality. 



It follows naturally from all this that also the 



