Please give an easy rule for measuring an acre when the length of one side is known.
A Subscriber.
Answer.—To measure an acre in rectangular form is a simple question in arithmetic. One has only to divide the total number of square yards in an acre, 4,840, by the number of yards in the known side or breadth to find the unknown side in yards. By this process it appears that a rectangular strip of ground—
5 yards wide by 968 yards long is 1 acre.
10 yards wide by 484 yards long is 1 acre.
20 yards wide by 242 yards long is 1 acre.
40 yards wide by 121 yards long is 1 acre.
80 yards wide by 60½ yards long is 1 acre.
70 yards wide by 69½ yards long is 1 acre.
60 yards wide by 80⅜ yards long is 1 acre.
NUMBER OF EURO-AMERICAN CABLES.
Fairmount, Ind.
How many submarine cables connect Europe with America?
Milton C. Cox.
Answer.—There are three Anglo-American cables, with an aggregate length of 6,450 miles; also, the old French cable, which is 3,329 miles long; the direct United States cable from Ireland, 2,360 miles; the new French cables, 3,461 miles, and the Brazilian cable, extending from Portugal to Brazil.