Diameter of arerage crrede = g2 feet. 
SCALE OF FEET. 
2. 30 to do 
Pec I ie as Oa 
SCALE OF ORIGINAL PLAN, f INCH= 20 FEET. 
Srone Crircte ar Swinsioe NEAR BrouGuron. 
19 20 30 cou so 
Serer et : é = 
SCALE OF ORIGINAL PLAN, INCH= [6 FEET. 
Srone Circre near Keswick. 
To face page 246. 
