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

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Use OR THE TABLE. 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 instance : Suppose it be a cable of 141 inches ; look against 141 and you will find in the other column 52 cwt. 2 qrs, which shews that 120 fathoms of 141 inch cable will weigh 52 cwt. 2 qrs, and fo in others : and any quantity of a less length will weigh in proportion.

A ship was brought to anchor in a gale of wind, but the gale increafing, it was thought safest to cut the cables, in consequence of which 75 fathomas of 16 inches and 50 fathoms of 12 inches were lost; what must they be valued at in calculating the average ; new cordage being then 14 dollars

per
cwt ?

CALCULATION. $20 fath. 16 in, cable=64 cwt. 120 fath. 12 in. cable=36 cwt.

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MONEY OF FRANCE.

[The following information was procured too late to be inserted in its

proper place.]

The present money of account in France is in Francs and Centimes pr hundredths, In November, 1800, an English guinea was worth 25 fr. 75 cent, A Spanish dollar

5 do.53 de.

To change francs to livres tournois.

RULE. Multiply the francs by 81 and divide by 8 for livres,

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To change livres tournois to francse, RULE. Multiply the livres by $0, and divide the produet by 81 for francs.

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RULE. Take one half of the sols and deniers, as if they were ias tegers ; this half is the number of centimès required.

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When there is a remainder in dividing the sols, it is to be carried to the deniers, and reckoned to and not 12 ; add this io to the dem niers, and take one half of the sum for the remaining centime.

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

EXAMPLES, sol. den. sol. den. sol. den. Change 1 10

7

10 to cèntimes.

and 15

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Sols and deniers are reduced to tentimes by the preceding rule, and though the result is not accurate, yet from its simplicity and con. cilenefs it is generally used,

TAB LES

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For changing Livres, Sols, and Deniers to Francs and Centimes, (N.B. The first is sufficiently exakt for business ; in the second the answer is calculated to the ten-thousandth part of a centime.]

TAB. I.

TAB. II.
Deniers. Fr. Cent. Fr. Cent. ten afliufandths

4115

o 8230 3

2346 4

6461 2 0576

4691 3

2 8807 3

3 2922 9

4

3 7037 IÓ

4 1152

4 5267 Sols.

5

4 9383 io

98765 3

15

14 8148 20

19 753 5

25

24 6914 30

296296 35

34 5679 40

39 5062

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85 1852
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19 75 3086
23 70 3704
29
39 50.6173

49 38 2716
· 59 25 9259
· 69 13 5803
71

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81 4815
98 76 5432
197 53 0864
296 29 6297
395 06 1729
493 82 7161

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