i io ENGLISH ESTATE FORESTRY 



In addition to the trees mentioned above there are 

 about a hundred species which are described in nurserymen's 

 catalogues as " producing valuable timber," " likely to become 

 a valuable timber tree," " grows so many feet in height in its 

 own country," etc. etc. Considering that these species cannot 

 be planted on a sylvicultural scale under 3 to 5 per acre 

 for plants alone, and that their growth in this country is 

 more or less an unsolved problem, they may well be left in 

 pineta or ornamental clumps for the present, or until species 

 which have hitherto proved themselves valuable fail or 

 become extinct. 



