ON WASTE LANDS. 23 



they are fcratched by ftones or roots, the 

 bark decays on that ficle, and often caufes 

 a blemim in the tree, after It has grown 

 leveral years. When the bark is not broke, 

 they pufli roots all along the truncheon 

 to the very furf ace, and make much finer 

 trees than thole planted with roots ; nei- 

 ther are they fubjecl to be blown up, 

 which the others are. 



IN plantations where under-wood Is 

 defigned, Ibme clumps of poplars will an- 

 fwer extremely well ; if the ground is in- 

 clined to wet, they will be fit for cutting- 

 much fooner than any other wood ; therer 

 fore they fiiould be kept by themlelves. 



TH E fowing tree-feeds by the plow has 

 been fome time in practice, and is cer- 

 tainly a good Icheme ; but to uie the plow 

 in poor gravelly land, that is covered 

 with (hort heath, and has never been in 

 tillage, will anfwer no end ; or if the 

 field or common be rough with coarfe 

 grafs, and little foil, it will coft ten times 



B 4 the 



