Table of Troy Weight
24 grains (gr.) = 1 pennyweight (dwt.)
24 pennyweights = 1 ounce (oz.)
12 ounces = 1 pound (lb.)
Table of Circular Measure
60 seconds = 1 minute
60 minutes = 1 degree
360 degrees = 1 circumference
A degree of the earth's surface or a meridian = 69.16 miles at the equator.
Table of Apothecaries' Weight
20 grains (gr.) = 1 scruple
3 scruples = 1 dram
8 drams = 1 ounce
12 ounces = 1 pound (lb.)
Table of Surface Measure
144 sq. in. = 1 sq. ft.
9 sq. ft. = 1 sq. yd.
30 1/4 sq. yds. = 1 sq. rod
160 sq. rods = 1 acre
640 acres = 1 sq. mile
An acre measures 208.71 ft. on each side.
A section of land is 1 sq. mile.
A quarter section 160 160 acres.
A township is 36 sq. miles.
24 grains (gr.) = 1 pennyweight (dwt.)
24 pennyweights = 1 ounce (oz.)
12 ounces = 1 pound (lb.)
Table of Circular Measure
60 seconds = 1 minute
60 minutes = 1 degree
360 degrees = 1 circumference
A degree of the earth's surface or a meridian = 69.16 miles at the equator.
Table of Apothecaries' Weight
20 grains (gr.) = 1 scruple
3 scruples = 1 dram
8 drams = 1 ounce
12 ounces = 1 pound (lb.)
Table of Surface Measure
144 sq. in. = 1 sq. ft.
9 sq. ft. = 1 sq. yd.
30 1/4 sq. yds. = 1 sq. rod
160 sq. rods = 1 acre
640 acres = 1 sq. mile
An acre measures 208.71 ft. on each side.
A section of land is 1 sq. mile.
A quarter section 160 160 acres.
A township is 36 sq. miles.