[ 9 ] 
inches in fixteen years: the laft contains 8 feet 3 
quarters 68 inches ; and, fuppofing them equal in 
17 43, gains 7 feet 384 inches; i. e. above 2 £ the 
increafe of the firft tree. But notwithftanding the 
tranfpl anted oak is thus much larger than the origi- 
nal oaks in the grove, yet as the tranfplanted tree 
does not run half the height of the trees in the grove 
before it heads, they differ but little in their quantity 
of timber. 
The following table fhews the monthly increafe of 
trees in the years 1757 and 1758. As I endeavoured 
to take the meafures with as much exa&nefs as was 
in my power, I cut three, four, or more notches in 
the bark of each tree, that my line might always be 
confined exa&ly to the fame place. I obferved, if I 
meafured foon after a rain, whilfl the bark was fatu- 
rate with water, the tree would be | of an inch larger 
than after a day or two of dry weather. I may here 
add, that all the meafures of circumferences of trees 
are taken at y feet from the earth : and confequently 
the folid meafures muft include 1 o feet in length. I 
generally made ufe of Keay’s Tables in the folid mea- 
fures, which go no lower than quarters of inches in 
girts : which is not fo exa£t as it ought to be. 
Vo l, LI. 
C 
Meafures 
