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Exchange with Hamburgh 153 Custom-Houses of the U.

Holland 159 nited States

227

Denmark 163 Arithmetical Progression 228

Bremen

165

Geometrical Progression

231

Antwerp

166

Permutation

234

Russia 168 Extraction of the Square

France 170 Root

235

Tables for changing Livres,

of the Cube Root

240

Sols & Deniers, to Francs of the Biquadrate Root 245

and Centimes

176 General Rule for Extracting

Table for reducing Francs

the Roots of all Powers 245

and Centimes to Livres, Duodecimals

247

Sols and Deniers

177 To find the contents of Bales,

Exchange with Spain 178 Cases, &c, in order to as-

Barcelona

186 certain the freight

243

Portugal

188 To find ships' tonnage by

Leghorn

190 Carpenter's measure 250

Naples

193

the Government ton-

Trieste

194

nage of ships 253

Palermo (in Sicily)196 Tables of cordage

255

- Genoa

198

for receiving and pay-

Venice

199

ing Gold Coins of

Sinyrna

200

France and Spain 257

Jamaica and Ber.

for receiving and pay-

mudas

204

ing Gold Coins of

Barbadoes

205

Great Britain and

Martinico, Toba.

Portugal
go and Saint Mercantile Precedents

Christopher's 206 Bill of Exchange

French West-In Bill of Goods at an advance

dies

207 on the sterling cost

Spanish West-In. Promissory Note

260

dies

210 Receipt for an endorsement

Calcutta

212 on a Note

260

Bombay

213

for money received

Madras

213

on account

Batavia

214 | Promissory Note by twoper-

China

216

260

Manilla

218

General Receipt

260

Ceylon

218 Bill of Parcels

Japan

219 Invoices

Tonnage of Goods from the Accounts of Sales

264

East-Indies to Europe 220 Accounts Current

267

Arbitration of Exchange 222 Bill of Sale

271

Mode of calculating Ameri Interest Account

272

can Duties

224 Charter Party

274

Rates at which all foreign Bill of Lading

coins are estimated at the

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PITTSBURGH, Nov. 1807. HAVING purchased the Copy-right of Walsh's New System of Mercantile Arithmetic, and being desirous of extending its circulation, I have just published an edition of the work, and hope, from its acknowledged utility, that our Schoolmasters and Merchants will give me all the encouragement which they may think I deserve from the nature of the undertaking. “I can further say, that I am enabled to make sales at a price lower than the same book sells in Philadelphia, either wholesale or retail ; thus saving something in the price of a valuable school-book, and the carriage, besides the advantages which must always arise from manufacturing at home articles of our own consumption.

ZADOK CRAMER.

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MR. BLUNT'S CERTIFICATE.

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Pittsburgh, Nov. 2d, 1807. This may certify that Zadok Cramer, Printer, has the exclusive privilege of printing and selling Walsh's Mercantile Arithmetic throughout the country West of the Alleghany Mountains, including New Orleans and all the country south.

EDM. M. BLUNT.

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SIGNIFIES equality, or equal to : as, 20 shillings=one

pound : that is, 20 shillings are equal to 1 pound. of Signifies more, or Addition :

as 6.+6=12, that is 6 added to 6 is equal to 12.

Signifies less, or Subtraction : as, 6–2=4, that is, 6 less 2 is equal to 4.

X Signifies Multiplication : as, 6X2=12, that is, 6 mul

tiplied by 2 is equal to 12.

Signifies Division : as 67-2=3, that is, 6 divided by 2 is equal to 3.

Division is sometimes expressed by placing the numbers

like a fraction, the upper figure being the dividend, and the lower the divisor : thus, 54=9, that is, 54 divided by 6 is equal to 9.

: :: : Proportion : as, 3:6:: 9:18, that is, as three is to 6

so is 9 to 18.

Prefixed to any number signifies that the square root of that number is required.

MERCANTILE ARITHMETIC.

RITHMETIC is the art of computing by numbers, and has five principal rules for this purpose, viz. Numeration, Addition, Subtraction, Multiplication, and Division.

NUMERATION

Teachetli to express any proposed number by these ten characters, 0. 1. 2. 3. 4. 5. 6. 7. 8. 9.-0 is called a cypher, and the rest figures or digits. The relative value of which depends upon the place they stand in, when joined together, beginning at the right hand as in the following

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Though the table consists of only nine places, yet it may be extended to more places at pleasure ; as, after hundreds of millions, read thousands of millions, ten thousands of millions, laundred thousands of millions, then millions of millions, &c.

TO WRITE NUMBERS.

RULE. Write down the figures as their values are expicssed, and supply any deficiency in the order with cyphers.

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