[ 2 49 3 
A to B was = 26 feet 
A to C = 2 1 feet 
B to C — 18 feet 6 inches 
E to C— 28 feet 
£ to .D = 40 feet 
5 to £>=34 feet. 
The meafures from A to B and B to D are fome- 
thing lefs than the truth, being the meafure of a 
firing ftrained in a if rait line from A to B> and from 
B to D y and not of the curve line ABD. 
Fig. r. 
O 
O y the fpe&ator’s foot' with his back to the fun, look- 
ing toward E, diftant about 2 feet from A. 
I i 
On 
