to the same market; and who are therefore to be watched as rivals endeavouring to take advantage of every error, miscarriage, or debate.

The chief of the means of trade is money, of which our late refinements in traffic 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 milleries of Portugal, and the livres of France; but he must learn what is of more difficult attainment; the discount of exchanges, the nature of current paper, the principles upon which the several banks of Europe are established, the real value 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 manufactures 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 traffic for ne

gros. He ought to be able to state with accuracy, the benefits and mischiefs of monopolies, and exclusive companies; to inquire 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 improveable; 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 impost, 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 some measure atone to the public 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 honesty 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 some 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 geographer 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 use 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 possessions, of all that desire to be rich, and all that desire to be wise,

OP

FATHER LOBO'S VOYAGE

TO ABYSSINIA*.

THE following relation is so curious and entertaining, and the dissertations that accompany it so judicious and instructive, that the translator is confident his attempt stands in need of no apology, whatever censures may fall on the performance.

The Portuguese traveller, contrary to the general vein of his countrymen, has amused his reader with no romantic absurdities or incredible fictions: whatever he relates, whether true or not, is at least probable; and he who tells nothing exceeding the bounds of probability, has a right to demand that they should believe him who cannot contradict him.

He appears, by his modest and unaffected narration, to have described things as he saw them, to have copied nature from the life, and to have consulted his senses, not his imagination. He meets with no basilisks that destroy with their eyes; his crocodiles devour their prey without tears; and his cataracts fall from the rock without deafening the neighbouring inhabitants.

*For an account of this book, see the Life of Dr. JOHNSON, by the Editor.

The reader will here find no regions cursed with irremediable barrenness, or blest with spontaneous fecundity; no perpetual gloom or unceasing sunshine; nor are the nations here described either devoid of all sense of humanity, or consummate in all private and social virtues: here are no Hottentots without religion, polity, or articulate language; no Chinese perfectly polite, and completely skilled in all sciences: he will discover what will always be discovered by a diligent and impartial inquirer, that wherever human nature is to be found, there is a mixture of vice and virtue, a contest of passion and reason; and that the Creator doth not appear partial in his distributions, but has balanced in most countries their particular inconveniences by particular favours.

In his account of the mission, where his veracity is most to be suspected, he neither exaggerates overmuch the merits of the Jesuits, if we consider the partial regard paid by the Portuguese to their countrymen, by the Jesuits to their society, and by the papists to their church, nor aggravates the vices of the Abyssinians: but if the reader will not be satisfied with a popish account of a popish mission, he may have recourse to the History of the Church of Abyssinia, written by Dr. Geddes, in which he will find the actions and sufferings of the missionaries placed in a different light, though the same in which Mr. Le Grand, with all his zeal for the Roman church, appears to have seen them.

This learned dissertator, however valuable for his industry and erudition, is yet more to be esteemed for having dared so freely, in the midst of France, to declare his disapprobation of the patriarch Oviedo's