The merchants map of commerce wherein the universal manner and matter relating to trade and merchandize are fully treated of, the standard and current coins of most princes and republicks observ'd, the real and imaginary coins of accounts and exchanges express'd, the natural products and artificial commodities and manufactures for transportation declar'd, the weights and measures of all eminent cities and towns of traffick in the universe, collected one into another, and all reduc'd to the meridian of commerce practis'd in the famous city of London / by Lewis Roberts, merchant.
About this Item
Title
The merchants map of commerce wherein the universal manner and matter relating to trade and merchandize are fully treated of, the standard and current coins of most princes and republicks observ'd, the real and imaginary coins of accounts and exchanges express'd, the natural products and artificial commodities and manufactures for transportation declar'd, the weights and measures of all eminent cities and towns of traffick in the universe, collected one into another, and all reduc'd to the meridian of commerce practis'd in the famous city of London / by Lewis Roberts, merchant.
Author
Roberts, Lewes, 1596-1640.
Publication
London :: Printed for Thomas Horne ...,
1700.
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Subject terms
Weights and measures -- Early works to 1800.
Coinage -- Early works to 1800.
Exchange -- Early works to 1800.
Balance of trade -- Early works to 1800.
Great Britain -- Commerce.
Link to this Item
http://name.umdl.umich.edu/A57390.0001.001
Cite this Item
"The merchants map of commerce wherein the universal manner and matter relating to trade and merchandize are fully treated of, the standard and current coins of most princes and republicks observ'd, the real and imaginary coins of accounts and exchanges express'd, the natural products and artificial commodities and manufactures for transportation declar'd, the weights and measures of all eminent cities and towns of traffick in the universe, collected one into another, and all reduc'd to the meridian of commerce practis'd in the famous city of London / by Lewis Roberts, merchant." In the digital collection Early English Books Online 2. https://name.umdl.umich.edu/A57390.0001.001. University of Michigan Library Digital Collections. Accessed June 17, 2024.
Pages
descriptionPage 377
CHAP. CCCLXXI. Of the Exchanges of Venice with Placentia.
* 1.1VEnice doth Exchange with
Placentia, and giveth posito Duc. 134½ of
Livers 6⅕ to have in Placentia 100 Crow. of mark: I demand for Ducats 1450 17/24, how many Crowns of Mark? First reduce the said Duc. 134½ into
grosses, multiply them by 24, and adding 12 grosses for the half Ducat, and it will make gross. 3228. in like manner you must reduce the said Ducats into grosses in multiplying them by 24, and adding of 17 gross. for the 17/24, (it being the same to say one gross, as 1/24) and it will be
grosses 34817; saying then by the Rule of Three, If
grosses 3228 give Crow. 100. what will
grosses 34817 give? And it will come to Crow. 1078: and multiplying the rest of the division by 20 to make them Sols of Gold, and by 12 to make them Deniers, it will be found to make in all Crowns 1078. 11. 10. of Gold of mark, and so much you shall have in Placentia for the said Duc. 1450 17/24 of l. 6. 4. s. as by the Example follow∣ing:
〈 math 〉〈 math 〉
* 1.2The proof of this Rule is more apparent when Placentia doth Exchange back with
Venice.