90 Inflrumental InflruBions 



I reckon the Qimntity of thefe Angles from 

 the Point of North in the Inftrument ^ they 

 who pleafe, may reckon their Compleraents 

 to 90° from the Points of Eaft or Weft, and 

 'twill be the fame Thing. If you would know 

 the Length of this Road, add up the fevetal 

 ftationary Diftances, and their Sum is 5 ch. 

 77 li. -• which, from the following Table, ap- 

 pears to be 126 Yards, I- of a Yard, which 

 is fomewhat more than half a quarter of a 

 ^lile, as is ^Ifo evident from the Table. : 



