« ΠροηγούμενηΣυνέχεια »
These examples are wrought according to the general rule given ip the former part of this section, and in the same manner as addition of avoirdupois; but paying a frict regard to the table, or the figures at the head of each column.
Note. That the pound avoirdupois is heavier than the pound troy; but the troy ounce is heavier than the avoirdupois ounce, for ilb. 202. 12pw. troy is equal to a pound avoirdupois; and a pound troy is about 1302. 21 dr. avoirdupois.
It is unnecessary to give examples of the other parts of addition, concerning apothecaries' weight, liquid, dry, and long measures, &c. as the same method ferves for all of them; having respect to the table belonging to each.
The Talle of Apothecaries' Weight.
By this weight apothecaries mix their drugs; but they are hought and sold by avoirdupois weight.
Nete. That a stone is generally 141b. in most parts of England; but among the London butchers it is only sib.
The Table of Cloth Meafire. 4 nails, or 9 inches I make i quarter of a yard. 4 quarters, or 36 inches 1 yard. 5 quarters, or 45 inches 1 ell English. 6 quarters, or 54 inches I ell French. 3 quarters, or 27 inches 1 ell Flemish.
The Table of Wine Measure. 8 pints
make i gallon. 42 gallons
i tierce. 63 gallons
1 hogshead: 84 gallons
i puncheon. 2 hogsheads
I pipe, or butt. 2 pipes, or butts 1 tun, or 252 gallons. Note. That sweet oil hath only 236 gallons to the tun. Alf liquids are measured by wine measure, except beer and ale.
Ale or Beer Measure. 8 pints
: make 1 gallon. 8 gallons
i firkin. 2 firkins
1 kilderkin 2 kilderkis
1 barrel. i barrel
I hogshead. The ale and beer gallons are the same; but the beér firkin contains 9 gallons; consequently, the kilderkin is, the barrel
In a Pipe, 'or Bult, there are,
in a Tun of Wine there are,
2 pipes, or butts.
6 tierces. 252 gallons.
504 pottles. 1008 quarts. 2016 pints. Vol. I.
126 gallons. 252 poitles. 504 quarts. 1008 pints.
make I quart. 2 quarts
1 pottle. 2 pottles
1 gallan. 2 gallons
I peck. 4 pecks
i bushel, land measure. specks
1 bulhel, water measure. 3 bushels
I sack. 4 bushels
I conib, or half quarter. 2 combs
I quarter. 4 quarters
I chaldron. s quarters
i wey. 2 weys
1 last, or 10 quarters, 4 fats or vats, or 36 bufels i chaldron.
Note. That in wheat flour there are always five bushels to the sack: and salt and sea-coal are heaped, or else there are five pecks to the bushel.
Long Measure. 3 barley-corns make
1 inch, 12 inches
I yard. 3 feet 9 inches
i ell English.
a geoinetrical pace. 6 feet
I fathom. si yards
i pole, perch, or rod. 40 poles, or perches
I furlong. 8 furlongs
1 English mile. 3 miles
In a Mile there
8 furlongs. 320 poles. 1760 yards.
5280 feet. 63360 inches. 190080 barley-corns.
Land Measure. 51 yards
make i pole, perch, or rod. 40 square poles
i rood, or quarter of 160 square poles
I acre. (an acre. 8o poles in length, and 2 in breadth 1 acre. 40 poles in length, and 4 in breadth 1 acre. 4 poles in length
I chain. 10 chains in length, and 1 in breadth 1 acre
The Table of Time. 60 seconds
make 1 minute. 60 minutes
1 hour, 24 hours
1 day, natural. 7 days
I week. 4 wecks
1 month, lunar. 13 months, 1 day, and near 6 hours i folar year.
In a Year there are,
13 months, 1 day, 6 hours. 52 weeks, 1 day, 6 hours. 365 days, 6 hours.
8,766 hours. 525,960 minutes. 31,557,600 seconds.
Nore. The folar year is divided into 12 unequal months, called calendar months, according to the ancient verse, which may serve to impress the number of days each month constains, on the memory :
Thirty days hath September,
SUBTRACTION, vulgarly called Substraction, teacheth bay to take a less number from a greater; and theweth the re: mainder, excess, or difference. Thus, if I take 7 from 9, there will remain 2..
Rule. Place the less number under the greater ; observing, that the figures of each denomination in the less number stand