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A Table fhewing the weight of any Cable or Rope, of 120 fathoms in length, and for every half inch, from 3 to 24 inches in cir cumference.

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The first column marked for inches, is the thickness or circumference of the cable to every half inch from 3 to 24 inches; the second, marked Cwt. qrs. for the hundred weights and quarters that it will weigh if 120 fathoms in length.

For inftance Suppofe it be a cable of 14 inches; look against 14 and you will find in the other column 52 cwt. 2 qrs, which fhews that 120 fathoms of 141 inch cable will weigh 52 cwt. 2 qrs. and fo in others: and any quantity of a lefs length will weigh in proportion.

A fhip was brought to anchor in a gale of wind, but the gale increaling, it was thought safest to cut the cables, in confequence of which 75 fathoms of 16 inches and 50 fathoms of 12 inches were loft; what muft they be valued at in calculating the average; new cordage being 14 dollars per cwt P

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MONEY OF FRANCE.

[The following information was procured too late to be inserted in its proper place.]

The prefent money of account in France is in Francs and Centimes or hundredths.

In November, 1800, an English guinea was worth 25 fr. 75 cent. A Spanish dollar

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5 do.53 dø.

To change francs to livres tournois.

RULE. Multiply the francs by 81 and divide by 80 for livres,

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To change livres tournois to francs.

RULE. Multiply the livres by $o, and divide the product by $1

for francs.

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To change fols and deniers to centimés.

RULE. Take one half of the fols and deniers, as if they were ins tegers; this half is the number of centimes required.

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When there is a remainder in dividing the fols, it is to be carried to the deniers, and reckoned 10 and not 12; add this 10 to the deniers, and take one half of the fum for the remaining centime.

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If the number of deniers be 10 or 11, they are to be rejected, and in place of them you are to add to the number of fols preceding, and then annex a cypher to it; one half of this is the centimes required.

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Sols and deniers are reduced to tentimes by the preceding rule, and though the refult is not accurate, yet from its fimplicity and contifenefs it is generally used,

TABLES

For changing Livres, Sols, and Deniers to Francs and Centimes, [N.B. The firft is fufficiently exact for business; in the fecond the anfwer is calculated to the ten-thousandth part of a centime.]

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