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SURAT, CAMBrar, guzzuRAT.

4 pieces make 1 fanam, value in the U. S. $0.034

4 fanam

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4 anas

2 rupees 14 anas

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4 pagoda

1 gold rupee

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COROMANDEL.

MADRAS, PONDICHERRY, &c.

4 cash make 1 pice, value in the U. S. $0.0069

8 pices

1 fanam,

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CALICUT, FORT WILLIAM, &c.

4 pice make 1 fanam, value in the U. S. $0.0115

3 fanam

1 ana,

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.034

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PEGU, MALACCO, CAMBODIA, SUMATRA, JAVA, Borneo, &c. 800 cori make 1 fettee, value in the U. S. $0.0011

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10 caxa make 1 candareen, value in the U. S. $0.014

10 candareen 1 mace,

35 candareen 1 rupee,

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JAMAICA, BARBADOES, &c.

4 farthings make 1 penny, value in the U. S.

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1 shilling,

1 pound currency,

1 bit,

1 dollar,

1 crown,

84 pence

24 shillings

1 pistole,

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ST. DOMINGO, MARTINICO, &c.

15 sols make 1 scalin, value in the U. S. %

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In Nova-Scotia, Canada, Florida, Cayenne, &c. where Engfish, French and Spanish monies circulate, the currency alters according to the plenty and scarcity of specie.

For the currencies of the Spanish, Portuguese, Dutch, Danish, &c. in the West-Indies, see their respective exchanges.

For the information of the readers of history, the monies of the ancients shall be explained here.

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Arbitrations of Exchange.

It is of the utmost consequence to the merchant, who has foreign concerns, to be well acquainted with the mode of arbitrating the exchanges between two or more places; to have a knowledge of their weights and measures and the proportion they bear to each other. By this means he may make his gains certain, his knowledge as a merchant respected; and may likewise acquire valuable correspondents abroad that otherwise might never hear of his name.

To the rule of proportion belongs the solution of all questions in arbitration; but as continual statements are not only tedious but liable to error, let the questions be solved by the following rule, called conjoined proportion.

First.—Distinguish the members of the arbitration into antecedents and consequents, placing the antecedents on the left and the consequents on the right.

Second. The first consequent must be of the same name with the second antecedent, which order must be observed through the equation, and the last consequent must be of the same name with the first antecedent.

Third. If any of the terms in the equation have a fraction annexed, multiply the whole numbers by the denominator, adding the numerator, and set the said denominator on the opposite side below; however, this may be dipensed with by taking parts for the jraction, &c.

Fourth. Multiply the antecedents for a divisor, and the consequents for a dividend, if the place of the antecedent be blank; or multiply the consequents for a divisor, and the antecedents for a dividend, if the place of the consequent be blank.

EXAMPLE.

1. Amsterdam owes New-York 6000 guilders: Whether is it better to draw at 37 cents the guilder, or have the money remitted by the following route, viz.-To Paris, at 54 d. flemish, for 3 francs; thence to Genoa, at 5 francs per piastre, thence to London, at 50d. sterling per piastre; and thence to New-York, at par. 18 d. flem. 5'4' 3' fr.

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dol.

and

5'1 piastre

1=5'0'. d ster. 10

5'4'1 dol.

dividend,

?=2'4'0000 d flem. 4000,0 ($2469.13

18x9=162 divisor) by the way of London.

$2469.13

then 6000 x 37 cents,2220

$249.13 gain by remitting.

This rule for abridging the antecedents and consequents, is founded on the 19th proposition of the 5th book of Euclid, which says, "If a whole magnitude, be to a whole, as a magnitude taken "from the first, is to a magnitude taken from the other, the re"mainder shall be to the remainder, as the whole to the whole."

See the application of this, case 4th of contractions in the rule of three direct, page 54.

The foregoing question is given here by proportion, to show how much unnecessary work is dispensed with.

d. flem. fr. d. flem.

First.-As 54: fr.

3 ::

piast.

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24000 :
fr.
13333.3',:
piast.

2666.6 :

d. ster.

fr.

13333.3',
piast.
2666.6'

d. ster. 133333.3

1 :: 133333.3′ : to $2469.13 as before.

Let the pupil work this solution in full.

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