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GOLD COINS WITH THEIR WEIGHT AND VALUE.

24 grains equal 1 pennyweight, 20 pennyweights 1 ounce, 12 ounces 1 pound.

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Doubloon, (of various fineness) from $15.31 to $15.71, generally weigh the same as a dollar, average.

MEXICO.

Doubloon, (shares in proportion) various dates coined at different mints, varying in value from $15.44 to $15.67, average

PRUSSIA.

25

2 27

4 74

4 00

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Quadruple Pistole, or Doubloon, (in prop.) 1772,
Doubloon, 1801 .

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Old par value of the Pound Sterling is $4.44.4. Present standard value is $4.84.4. When exchange is at 9 per cent it is then at par value; if less than 9 it is below, if higher than nine it is above.

To reduce old par value, $4.44.4, to dollars, multiply by 40, and divide by 9. To reduce dollars to old par value, reverse by multiplying by 9 and dividing by 40. The shillings and pence must first be reduced to decimals of a pound.

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MEASURES OF SOLIDITY OR CUBIC MEASURE

1,728 inches=1 cubic ft.
27 cubic ft. 1 cubic yard.

40 cubic ft. of round timber=1 ton. 50 cubic ft. of hewn timber=1 ton.

16 cubic ft. of wood-1 ft. of wood 8 ft. of wood, or 128 cubic ft.=1 cd. 1 chal. of Newc'tle coal-5,936 lbs. 1 perch of stone-24 75 cubic ft.

FRENCH MEASURES OF FREQUENT REFERENCE, COMPARED WITH UNITED STATES MEASURES.

Toise, 76.755 inches.

League, 2,280 toises (common),

2,000 (post).

Fathom, 5 feet.

Metre, 3.28 feet.

Decimetre (1-10th metre), 3.94 inches.

Velt, 2 gallons.

Hectolitre, 26.42 gallons.

Decalitre, 2.64 gallons.

Litre, 2.11 pints.
Kilolitre, 35.32 feet.
Hectolitre, 2.84 bushels
Decalitre, 9.08 quarts
Millier, 2.205 pounds.
Quintal, 220.54 pounds.
Kilogramme, 2.21 pounds.
100 lbs., 107.93 pounds

100 feet, 106.60 feet

Tun (of wine), 240 gallons.

NUMBER OF CUBIC FEET IN A TON (2,240 LBS.) OF VARIOUS BODIES.

Marble, 15.09.

Granite, 16.

Common stone, 14.22.

Paving stone, 14.83.

Sand, 23.5.

Tallow, 38.

English Oak, 37.

American Oak, 41.

Ash, 47.
Elm, 64.5.
Beech, 50.5.
Teak, 48.

Spanish Mahogany, 45.
Honduras Mahogany, 55.
Maple and Riga Fir, 47.8.
Larch, 65.8.
Pitch Pine, 53.6.
Oil, 39.

Proof spirits, 38.6.
Distilled Water, 35.6.
Sea Water, 34.7
Grindstones, 17.
Brick, 17.

WEIGHTS OF VARIOUS SUBSTANCES. LBS. AVOIRDUPOIS.

Weight Per Cubic Foot.

Bricks, 124 lbs.

Clay, 130 lbs.

Sand or loose earth, 95 lbs.
Common soil, 124 lbs.
Cork, 15 lbs.

Clay and stones, 160 lbs
Marble, 141 lbs.
Granite, 140 lbs.
Cast iron, 450.55 lbs.
Wrought iron, 486.65 lbs.
Steel, 489.8 lbs.
Copper, 555 lbs.
Lead, 708.75 lbs.
Brass, 534.75 lbs.
Tin, 436 lbs.

White pine, 29.56 lbs.
Pitch pine, 41.8 lbs.
Red pine, 41.5 lbs.
Elm, 34.9 lbs.

English Oak, 60.4 lbs.
Oak, 58.6 lbs.
Canadian oak, 54.8 lbs.

New England fir, 34.9 lbs.
Sea water, 64.3 lbs.
Fresh water, 62.5 lbs.

Air, .07529.

Steam, .03689.

Weight Per Cubic Inch.

Lead, .410 lb.

Sheet copper, .323 lb.
Sheet brass. .304 lb.
Sheet iron, .279 lb.

Cast iron, 263 lb.
Cast tin, .264 lb.
Cast zinc, .245 lb.
Platinum, rolled, 797 lb.
Platinum, wire, .762 lb.
Platinum, hammered, .735 lb.
Platinum, purified, .705 lb.
Platinum, crude, grains, .566 lb.
Gold, hammered, .701 lb.
Gold, pure cast, .698 lb.
Gold, 20 carats fine, .567 lb.
Silver, hammered, .382 lb.
Silver, pure, .378 lb.

Cast steel, .287 lb.

Steel, common, soft, .284 lb

Steel, hard and tempered, .282 lb.

Iron bar, .281 lb.

Iron, cast, .261 lb.

Iron, hammered, .281 lb.

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