( 70 ) 
In order to enable the Coffee-Planter to asceru 
the quantity of land by the number of picquets, 
may be proper to inform him that a square acre 
of land contains 43 ,560 square feet:—therefore if 
he plants at 9 feet, for every 537 picquets he may 
count an acre. 
At 10 feet, 435 picquets will be an acre. 
At 8-6S0. 
At 7 -8S8, &c. 
FOR 
10 X 10=100 and 43560=435. 
100 
^ I 
9 X 9=81-43560=537. 
81 
8 X 8=64-43560=680. 
64 
7 X 7=49 -43560=888, See. 
49 
* 
So 2722 Cane-holes of 4 feet square make an acre. 
4 X 4=16, and 43560=2722, &c. 
16 
REFERENCES 
4 
