A COLLECTION OF TABLES OF BRITISH AND FOREIGN MEASURES AND WEIGHTS, TAKEN FROM THE BEST AUTHORITIES. A pole, perch, and rod are the same measure. 3 miles are an English league. 69 miles, or 365640 feet, is computed to be equal to one degree of a great circle of the earth, or so much must any person change his place on a meridian to alter his latitude one degree, or on the equator to alter his longitude one degree. A fathom is equal to 6 feet, a customary measure for depths. A hand is 4 inches, by which the heights of horses are measured. The standard pole or perch according to Act of Parliament, is 16 feet; but there are other provincial customary measures. In Devonshire, the customary perch is 15 feet in length. In Dorsetshire, (Isle of Purbeck) 15 feet and an inch. In Cornwall, 18 feet. In Scotland, the perch is generally 18, and in some places 19 feet. In Lancashire and Ireland, 21 feet. A Table of Square Measure. 6272640 10890= 1210 = 4840= 40= 1 Rood Sq. 160- 4 1 Acre Sq. 4014489600-27878400=3097600=102400=2560=640=1 Mile Sq. A square chain is the tenth part of an acre. 144 Square inches are equal to 1 62.7264 square inches equal to 1 10.000 square links is 1 square chain. 100 4.000 1.000 square foot, square link, B. Noble, in his Geodesia Hibernica, 8vo. p. 9 and 10, states, that an Irish square perch is 49 yards, and that an Irish acre is 7850 yards, or 160 square perches. Hence an Irish acre, is to an English acre, as 7850 to 4840, or as 49 to 30. 1 Load of timber is 50 cubical feet. 1 Load of earth is 27 feet, or 1 cubical yard. 6 A Table of Square Scotch Measures. Sq. Inches Sq. Feet Sq. Ells Sq. Falls, or Sq. Rood Sq. Acre Sq. Roods 24.8 English yards, are equal to one Scotch chain, 80 chains, or one English mile, are equal to 71 Scotch chains, the proportion of the English to the Scotch chain, is therefore as 80 to 71.* 6150 Square English yards are equal to a Scotch acre. One English acre is equal to 0.787 (or a little more than ) of a Scotch acre. One Scotch acre is equal to 1.27 (or little more than 1) of an English acre. *Gray, in his Art of Land Measuring, 1757, p. 17, states a Scotch chain to be 24 ells, and each link to be 8,88 Scotch inches. By the Act of Union, 12 Scotch gallons are equal to an English barrel, or 9588 cubic inches instead of 9927. A lippee or feed is 200 345 cubic inches. The old measures, or those previous to the late French Revolution, were as contained in the annexed tables. The new measures, or those esta blished since the Revolufion, follow directly after. An English foot is equal to 0.9383 of a French foot. A French foot is equal to 1.06575 English foot. A French toise is equal to 6.3945 English feet. Sir G. Shuckburgh determined accurately the Paris half toise to be 38.3561 English inches. Their square measures for land surveying, &c. are as follows: The Paris arpent consisted of 100 square perches, of 18 Paris lineal feet each, or 324 square Paris feet, therefore making in the whole 32400 square Paris feet (or 36720 square English feet) for the arpent, which in round numbers is about ths of the English acre. The Mesure Royale de France pour l'arpentage des terres established the perche to be 22 feet of lineal measure, or consequently 484 square feet, which augmented 100 times gives 48400 square Paris feet (or 54853.36 English feet for the arpent, which is somewhat above 14 English acre. former arpent of 32400 feet was generally used about Paris. The The cubic Paris foot or inch, is to the English cubic foot, nearly as 1.21 to 1; so that one cubic Paris foot or inch is about 14 English cubic foot or inch; hence 5 Paris cubic feet make 6 English cubic fect. |