OF TRANSPLANTING LARGE TREES. 335 



plantations thus formed, should be kept clean with 

 the hoe during the first three or four years. 



The above is as full an account as the limits of 

 this volume will admit, of the practical part of Sir 

 Henry Steuart's system. Those who wish to have 

 a more full explanation of it, will have recourse 

 to his own work on the subject, where they will 

 find the true principles laid down which should re- 

 gulate General Arboriculture, and raise it from the 

 rank of a mechanical process to that of a scientific 

 ART. They will there moreover find, that the 

 manual operations above decribed are in strict ac- 

 cordance with those principles, with a chemical ana- 

 lysis of soils and manures, and with the physiology 

 of plants. Sir Henry's system, however, has also 

 received the support of experience. Its utility is 

 now fully established in the improvements effected 

 by means of it, not only at AUanton, the seat of the 

 inventor, but in the parks of many other gentlemen, 

 who have lately taken advantage of it, to improve the 

 scenery about their mansions. A Committee of the 

 Highland Society, composed of gentlemen who will 



