SECTION VII. 



PEEPARATION OF THE TREES FOR REMOVAL. 



It has been said above that the removal of large trees 

 is applicable to two different objects, namely, single trees, 

 or open dispositions of wood, and to close plantations ; 

 which last consist of grove and underwood intermixed. 

 Now, as the former much more frequently occur in practice 

 than the latter, so transplanting may be generally said, as 

 has been already noticed, to imply increased exposure. 



By the wise economy of nature, it has been provided 

 that trees in open situations, in order to thrive, must 

 possess certain external conditions which have been desig- 

 nated the protecting properties. Therefore the principle 

 of transplanting lies in adopting such subjects as possess 

 those properties, wherever they can be found, and in com- 

 municating them to others in which they may be deficient. 

 It is obvious that trees endued with the protecting pro- 

 perties or prerequisites require no preparation at aU ; and 

 that those trees which possess them partially or inade- 

 quately require it precisely in the ratio or degree of that 

 inadequate possession. Further, it is apparent, as these 

 properties must be either protecting or non-protecting, or 

 a modification of the one or the other, so the complete 

 presence of the one class of properties necessarily implies 

 the absence of the other class. But both may neverthe- 

 less exist at one and the same time in diflPerent parts of 

 the same tree. For the purpose of removal, for example, 



