CHAP, in S Y L V A 49 



In Sheffield Park, an. 1646, stood above 100 trees 

 worth iooo//. and there are yet two worth above 20 /. 

 Still note the place and market. 



In the same park, about eight years ago, Ralph 

 Archdall cut a tree that was thirteen foot diameter at 

 the kerf, or cutting place near the root. 



In the same park two years since, Mr. Sittwell, 

 with Jo. Magson did chuse a tree, which after it was 

 cut, and laid aside flat upon a level ground, Sam. 

 Staniforth a keeper, and Edw. Morphy, both on 

 horse-back, could not see over the tree one anothers 

 hat-crowns. (And such another was the Marbury oak, 

 mention 'd in sect. 10 of this chapter.) This tree 

 was afterwards sold for ao//. 



In the same park, near the Old Foord, is an oak-tree 

 yet standing, of ten yards circumference. 



In the same park, below the Conduit Plain, is an 

 oak-tree which bears a top, whose boughs shoot from 

 the boal some fifteen, and some sixteen yards. 



Then admitting 1 5^ yards for the common, or 

 mean extent of the boughs from the boal, which 

 being doubled, is 3 1 yards ; and if it be imagin'd 

 for a diameter, because the ratio of the diameter 

 to the circumference is ~, it follows 113:355:: 

 31 : 97 ^ yards, which is the circumference 

 belonging to this diameter. 



Then farther it is demonstrable in geometry, that 

 half the diameter multiplied into half the cir- 

 cumference produces the area or quantity of the 

 circle, and that will be found to be 754 ~ which 

 is 755 square yards fere. 



Then lastly, if a horse can be limited to three 

 square yards of ground to stand on (which may 

 seem a competent proportion of three yards long, 



GG 



