From London, the goods go chiefly to the great towns, and from those again to the smaller markets, and from those to the meanest villages; so that all the manufactures of England, and most of them also of foreign countries, are to be found in the meanest village, and in the remotest corner of the whole island of Britain, and are to be bought, as it were, at every body's door.
This shows not the extent of our manufactures only, but the usefulness of them, and how they are so necessary to mankind that our own people cannot be without them, and every sort of them, and cannot make one thing serve for another; but as they sell their own, so they buy from others, and every body here trades with every body: this it is that gives the whole manufacture so universal a circulation, and makes it so immensely great in England.

What it is abroad, is not so much to our present purpose.
Again, the magnitude of the city of London adds very considerably to the greatness of the inland trade; for as this city is the centre of our trade, so all the manufactures are brought hither, and from hence circulated again to all the country, as they are particularly called for.

But that is not all; the magnitude of the city influences the whole nation also in the article of provisions, and something is raised in every county in England, however remote, for the supply of London; nay, all the best of every produce is brought hither; so that all the people, and all the lands in England, seem to be at work for, or employed by, or on the account of, this overgrown city.
This makes the trade increase prodigiously, even as the city itself increases; and we all know the city is very greatly increased within few years past.

Again, as the whole nation is employed to feed and clothe this city, so here is the money, by which all the people in the whole nation seem to be supported and maintained.
I have endeavoured to make some calculation of the number of shopkeepers in this kingdom, but I find it is not to be done--we may as well count the stars; not that they are equal in number neither, but it is as impossible, unless any one person corresponded so as to have them numbered in every town or parish throughout the kingdom.

I doubt not they are some hundreds of thousands, but there is no making an estimate--the number is in a manner infinite.