508 



Girth. Girth. 

 In. In. 



7 1758 18 1772 36 



8 1758 76 1772 93^ 



9 1751 124 1772 147 



10 1744 23| 1765 49 



11 1744 69h 1772 99 



12 1744 14 1765 43 



13 1747 82 1765 99h 



PHILOSOPHICAL TRANSACTIONS. 



[anno 17S8. 



Oaks. 



Rate. 

 In. 



1.3 1787 

 1.25 1787 



Girth. Rate, 



20 



21 1745 



22 1744 



23 1744 



24 1744 



25 1751 



26 1765 



27 1747 



28 



23^ 



22 



32 



66 



20 



55 



77 



1772 71 



1765 67 



1765 55| 



1765 61 



1765 94 



1772 45 



1772 64 



1765 97 



1772 67h 



1.1 

 1.2 

 1.1 

 1.4 

 1.0 



2.2 

 1.6 

 1.4 

 1.4 



1787 

 1787 

 1787 

 1787 

 1787 



1787 

 1787 

 1787 

 1787 

 1787 



1.25 1782 

 1.2 1787 

 1.0 1787 

 1787 



In. 



54 



mh 

 l6^ 



74> 

 115 



60 

 \20h 



106 



111 

 92 

 94>i 



114 

 58| 

 75^ 



u6k 



82 



In. 

 1.2 

 1.1 

 1.2 

 1.1 

 l.l 

 0.8 

 1.0 



Girth. Girth. Rate. Girth. Rate. 



In- In. In. In. In. 



14 1744 21 1765 45 1.1 1787 64 0.9 



15 1762 io6| 1772 117 1.0 1787 130 o.y 



16 1751 117 1770 132 0.8 1787 1491 1.0 



17 1751 114 1770 131| 0.9 1787 145 0.8 



18 1751 84| 1772 101 0.8 1787 109 0.5 



19 1744 41 1765 58| 0.8 1787 69 0.5 



Ash. 



2.3 

 2.0 

 1.7 

 1.5 

 1.0 

 0.9 

 0.9 

 1.0 

 1.0 



29 1744 56 1765 77h 1-0 



30 1755 51| 1772 67 0.9 1787 

 31 1765 74 1781 



32 1751 45^ 1772 67 1.0 1787 



33 1744 17| 1765 34 0.8 1787 



34 1744 17 1765 36^ 0.9 1787 



35 1744 20 1772 40 0.7 



36 1745 13^ 1772 3lJ 0.7 1787 



80 0.9 



89 0.9 



77 0.7 



52 0.8 



52| 0.7 



41 0.6 



37 1755 1772 42 2.5 1787 77 2.3 



38 1744 28 1765 60 1.5 1787 96 1.6 



39 1744 37 1758 50 0.9 1781 72 1.0 



Elms. 



40 1744 46 1758 58 0.9 



41 1744 48 1758 59 0.8 



Except the first 2 ash trees, the growth of oak and ash are nearly the same, 

 Mr. B. had some of both sorts planted at the same time, and in the same hedges, 

 of which the oaks are the largest, but there is no certain rule as to that. The 

 common growth of an oak or an ash is about an inch in girth in a year; some 

 thriving ones will grow an inch and a half; the unthriving ones not so much,^ 

 some probably less than any here, for he chose in general to measure those that 

 seemed thriving. 



Large trees grow more timber in a year than small ones; for if the annual 

 growth be an inch, a coat of -^ of an inch thick is laid on all round, and the 

 timber added to the body every year is its length multiplied into the thickness of 

 the coat, and into the girth ; and therefore the thicker the tree is, the more 

 timber is added. The body of N° 9 is 9 feet long, the girth under the bark 

 above 13 feet, the thickness of the coat -^ of an inch or-^v of a foot: then 9 X 

 13 X yV is 1^ feet of timber added in a year to the body, besides the increase on 

 all the branches, and it has a very great head; one limb squares 20 inches, and 

 is itself equal to a moderate tree. 



The hedge in which N°4 grows was planted in l665, probably the tree is not 

 older than that year; it has therefore increased in girth about 1.3 inch every year 

 since it was set. The oak, N° 5, he believed sowed itself; and he did not know 

 there was such a one till about the year 1740, when the hedge being cut, the 

 tree was found, and might be then 20 years old or more. The 2 ash trees N**^ 



