166 



NOTICES OF AUTHORS. 



pearing, is the only part which suflPers fracture in 

 the woody state; and the side shoots, which become 

 the grand root leaders, are in the fibrous state, which 

 easily repairs small injuiy. These observations re- 

 fer only to certain kinds of timber trees. The willows, 

 poplars, and lindens, succeed better when their roots 

 are cropped in near the bulb when removed. We 

 planted a piece of trenched ground, partly with pop- 

 lar plants, with good roots, from a nursery, and part- 

 ly with poplar loppings, about the same size as the 

 plants, stuck into the ground: the loppings grew 

 more luxuriantly than the nursery plants. The 

 same occurs with willows— with this difference, that 

 willow-loppings do better with the top entirely 

 cropped, without any twigs or external buds ; the 

 poplar only pruned a little, with a terminal bud left 

 on every twig, especially on the top shoot. The su- 

 periority of the growth of those without roots, results 

 from their having fewer buds and twigs to exhaust 

 the juices before the formation of new fibrils to 

 draw from the ground, these few buds thence con- 

 tinuing to push more strongly, and from the roots 

 growing more vigorously when sprung anew, than 

 when they are a continuation of the wounded de- 

 ranged old ones. 



New rootlets spring out much sooner and more 



