HEDGE-ROW TIMBER, &C. 205 



This will appear at first view, when it is 

 considered, that every single tree or small 

 group must be fenced round. What ma- 

 terials the fence should be composed of, 

 may be ruled by various circumstances. It 

 may be of stone, of close paling, or of rail- 

 ing interwoven with brushwood, &c. But 

 it should be such, and kept in such repair, as 

 that cattle or sheep may find it impossible to 

 come at, or injure the plants, until they are at 

 least thirty years old. Indeed, sheep should 

 never be suffered to come at growing trees. 

 The oil or grease which exudes from their 

 wool in rubbing is particularly injurious to 

 vegetation *. 



In respect to TRAINING AND PRUNING, 

 it is presumed the rules laid down in Sec- 

 tion VIII. of the preceding Chapter, being 

 followed, and, perhaps, improved, may suf- 

 fice for Detached trees. For Hedge-row 

 timber, it may be necessary to remark, that 

 as ornament is less an object than utility, it 

 should be TRAINED FOR PROFIT ; accord- 



* Concerning which, see my ideas more fully ex- 

 plained in p. 302 of the Forcing Fruit and Kitchen 

 Gardener. Third Edit. 



