306 



NOTICES OF AUTHORS, 



spring than the top of the tree ; this successive com- 

 mencement of vegetation prolonging the bleeding. 



Again, in larch, we find that by far the hardest 

 and most durable wood is grown upon poor, hard, 

 thin tills (that is, thin of vegetable mould upon the 

 diluvium), even where the root-rot commences about 

 thirty years of age. Now, we ask, is this the natural 

 soil of larches ? We have not, however, found larch 

 from rich loam, of better quality than from poor sand, 

 as we have observed in Scots fir. We also consider 

 larch, grown on a proper larch soil — on sound soil and 

 subsoil, or sound rock, common in acclivous situa- 

 tion — superior in quality to larch of equal quickness 

 of growth, raised on rich loam or sand, though not 

 equal to larch of slow growth from the above men- 

 tioned poor tills. 



W e would ask how our author is enabled to 

 assume, as an axiom, that trees produce the best 

 timber in their natural locality? We would also 

 desire some ?Ydional information to shew in what 

 manner pruning up can in any way conduce gene- 

 rally, to the increase of the timber, or to the enlarge- 

 ment of one-stemmed vegetables. A tree natu- 

 rally rises in one stem. It throws out its branches 

 in the disposition most favourable to draw the full- 

 est benefit from the light and air. It of its own ac- 



