MEASUREMENT OF LAND. 



Where the field is long, and the sides crooked and 

 irregular. 



RULE. Take the breadth in rods in a number of places, 

 at equal distances apart ; add them, and divide the sum by 

 the number of breadths for the mean average or breadth ; 

 then multiply that by the length in rods arid divide the 

 product by 160, and the quotient will be the number of 

 acres. 



EXAMPLE. What is the area in acres of a long irregular- 

 sided field, the length of which is 80 rods, and its breadths 

 at 10 rods apart are as follows, viz. : 8, 10, 11, 9, 8, 7, 9, 

 10 rods? 



SOLUTION. 8 + 10 + 11 + 9 + 8 + 7 + 9 + 10 = 72 ~ 8 = 9 

 rods mean breadth; then 9 x 80 =720 -i- 160 =4 acres and 

 80 rods, or 4|- acres. A.ns. 



Where the field is long, and the sides and ends crooked 

 and irregular. 



