67 



transverse bark of the beurre for 1. that of 

 the French bergamot will be 2.1666, or as 

 6 to 13 ; that of the jargonell will be 2.2, 

 or as 5 to 1 1 ; that of the muscat, (a tree 

 very much given to canker,) will be 2.8, or 

 5 to 14T; that of the longueville will be 2.8, 

 or as 5 to 14. 



Any person may make as many experi- 

 ments of this kind as he pleases, but we 

 think these sufficient to establish the gene- 

 ral principle. Perhaps some species of trees 

 may be more given to canker, in some soils 

 and situations, and other in others ; but 

 this can make no alteration either in the 

 rule or practice ; and it is believed that 

 those on which the above experiments were 

 made, are much given to canker and bar- 

 renness, in every soil and situation, in this 

 climate. And on several hundred of trees, 



