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fome Order, and enable the Mind to take a methodical and successive View of this Design.
In the Dictionary which we here offer to the Publick we propose to exhibit the Materials, the Places, and the Means of Traffick.
The Materials or Subjects of Traffick are whatever is bought and fold, and include therefore every Manufacture of Art, and almost every Production of Nature.
In giving an Account of the Commodities of Nature, whether those which are to be used in their original State, as Drugs and Spices, or those which become useful when they receive a new Form from Human Art, as Flax, Cotton, and Metals, we Thall shew the Places of their Production, the Manner in which they grow, the Art of cultivating or collecting them, their Discriminations and Varieties, by which the best Sorts are known from the worse, and genuine from fictitious, the Arts by which they are counterfeited, the Casualties by which they are impaired, and the Practices by which the Damage is palliated or concealed. We shall likewise New their Virtues and Uses, and trace them through all the Changes which they undergo.
The History of Manufactures is likewise delivered. Of every artificial Commodity the Manner in which it is made is in some measure described, though it must be remembered, that manual Operations are scarce to be conveyed by any Words to him that has not seem them. Some general Notions may however be afforded; it is easy to comprehend, that Plates of Iron are formed by the Pressure of Rollers, and Bars by the Strokes of a Hammer, that a Cannon is cast, and that an Anvil is forged. But as it is to most Traders of more Ufe to know when their Goods are well wrought, than by what Means, Care has been taken to name the Places where every Ma.
nufacture has been carried furthest, and the Marks by which its Excellency may be ascertained.
By the Places of Trade are understood all Ports, Cities, or Towns where Staples are established, Manufactures are wrought, or any Commodities are bought and fold advantageously. This Part of our Work includes an Enumeration of almost all the remarkable Places in the World, with such an Account of their Situation, Customs, and Products, as the Merchant would require, who, being to begin a new Trade in any foreign country, was yet ignorant of the Commodities of the Place, and the Manners of the Inhabitants.
But the chief Attention of the Merchant, and consequently of the Author who writes for Merchants, ought to be employed upon the Means of Trade, which include all the Knowledge and Practice necessary to the skilful and successful Conduct of Commerce.
The first of the Means of Trade is proper Educa. tion, which may confer a competent Skill in Numbers ; to be afterwards completed in the Countinghouse, by Observation of the Manner of ftating ACcompts, and regulating Books, which is one of the few Arts which, having been studied in proportion to its Importance, is carried as far as Use can require. The Counting-house of an accomplished Merchant is a School of Method, where the great Science may be learned of ranging Particulars under Generals, of bringing the different Parts of a Transaction together, and of fhewing at one View a long Series of Dealing and Exchange. Let no Man venture into large Business while he is ignorant of the Method of regulating Books ; never let him imagine that any Degree of natural Abilities will enable him to supply this Deficience, or preserve Multiplicity of Affairs from inextricable Confusion.
This is the Study, without which all other Studies will be of little Avail ; but this alone is not sufficient. It will be necessary to learn many other Things, which however may be easily included in the preparatory Institutions, such as, an exact Knowledge of the Weights and Measures of different Countries, and some Skill in Geography and Navigation, with which this Book may perhaps sufficiently fupply him.
In Navigation, considered as part of the Skill of a Merchant, is included not so much the Art of steering a Ship, as the Knowledge of the Sea-coast, and of the different Parts to which his Cargoes are sent, the Customs to be paid, the Passes, Permisfions, or Certificates, to be procured, the Hazards of every Voyage, and the true Rate of Insurances. To this must be added, an Acquaintance with the Policies and Arts of other Nations, as well those to whom the Commodities are fold, as of those who carry Goods of the fame Kind to the same Market, and who are therefore to be watched as Rivals en. deavouring to take Advantage of every Error, Mifcarriage, or Debate.
The chief of the Means of Trade is Money, of which our late Refinements in Traffick have made the Knowledge extremely difficult. The Merchant must not only inform himself of the various Denominations and Value of foreign Coins, together with their Method of counting and reducing ;- such as the Millereis of Portugal, and the Livres of France; but he must learn what is of more difficult Attain. ment, the Discount of Exchanges, the Nature of Current Paper, the Principles upon which the several Banks of Europe are established, the real Va. lue of Funds, the true Credit of Trading Companies, with all the Sources of Profit, and Possibilities of Loss,
All this he must learn merely as a private Dealer attentive only to his own Advantage; but as every Man ought to consider himself as Part of the Community to which he belongs, and while he prosecutes his own Interest to promote likewise that of his Country, it is necessary for the Trader to look abroad upon Mankind, and study many Questions which are perhaps more properly political than mercantile
He ought therefore to consider very accurately the Balance of Trade, or the Proportion between Things exported and imported; to examine what Kinds of Commerce are unlawful, either as being expressly prohibited, because detrimental to the Ma. nufactures or other Interest of his Country, as the Exportation of Silver to the East Indies, and the Introduction of French Commodities; or unlawful in itself, as the Traffick for Negroes. He ought to be able to state with Accuracy, the Benefits and Mischiefs of Monopolies, and exclufive Companies : to enquire into the Arts which have been practised by them to make themselves necessary, or by their Opponents to make them odious. He should inform himself what Trades are declining, and what are improvable; when the Advantage is on our Side, and when on that of our Rivals.
The State of our Colonies is always to be diligently surveyed, that no Advantage may be lost which they can afford, and that every Opportunity may be improved of increasing their Wealth and Power, or of making them useful to their Mother Country.
There is no Knowledge of more frequent Use than that of Duties and Imposts, whether Customs paid at the Ports, or Excises levied upon the Manufacturer. Much of the Prosperity of a trading Nation depends upon Duties properly apportioned; so that what is necessary may continue cheap, and what is of Use only to Luxury, may, in fome Measure atone .to
the Publick for the Mischief done to Individuals. Duties may often be so regulated as to become useful even to those that pay them; and they may be likewise so unequally imposed as to discourage Honefty, and depress Industry, and give Temptation to Fraud and unlawful Practices.
To teach all this is the Design of the Commercial Dictionary, which though immediately and primarily written for the Merchants, will be of Use to every Man of Business or Curiosity. There is no Man who is not in fome Degree a Merchant, who has not something to buy and something to sell, and who does not therefore want such Instructions as may teach him the true Value of Possessions or Commodities.
The Descriptions of the Productions of the Earth and Water, which this Volume will contain, may be equally pleasing and useful to the Speculatist with any other Natural History, and the Accounts of various Manufactures will constitute no contemptible Body of Experimental Philosophy. The Descriptions of Ports and Cities may instruct the Geogra. pher as well as if they were found in Books appropriated only to his own Science; and the Doctrines of Funds, Insurances, Currency, Monopolies, Exchanges, and Duties, is so necessary to the Politician, that without it he can be of no U se either in the Council or the Senate, nor can speak or think justly either on War or Trade.
We therefore hope that we shall not repent the Labour of compiling this Work, nor flatter ourselves unreasonably, in predicting a favourable Reception to a Book which no Condition of Life can render useless, which may contribute to the Advantage of all that make or receive Laws, of all that buy or sell, of all that wish to keep or improve their Poffefsions, of all that desire to be Rich, and all that desire to be Wise, VOL, III,