ad; for I am not only a
frequent, but a prolix correspondent.

Mr. Harte says, in that letter, that he looks upon Professor Mascow to be
one of the ablest men in Europe, in treaty and political knowledge. I am
extremely glad of it; for that is what I would have you particularly
apply to, and make yourself perfect master of. The treaty part you must
chiefly acquire by reading the treaties themselves, and the histories and
memoirs relative to them; not but that inquiries and conversations upon
those treaties will help you greatly, and imprint them better in your
mind. In this course of reading, do not perplex yourself, at first, by
the multitude of insignificant treaties which are to be found in the
Corps Diplomatique; but stick to the material ones, which altered the
state of Europe, and made a new arrangement among the great powers; such
as the treaties of Munster, Nimeguen, Ryswick, and Utrecht.

But there is one part of political knowledge, which is only to be had by
inquiry and conversation; that is, the present state of every power in
Europe, with regard to the three important points, of strength, revenue,
and commerce. You will, therefore, do well, while you are in Germany, to
inform yourself carefully of the military force, the revenues, and the
commerce of every prince and state of the empire; and to write down those
informations in a little book, for that particular purpose. To give you a
specimen of what I mean:--

THE ELECTORATE OF HANOVER

The revenue is about L500,000 a year.

The military establishment, in time of war, may be about 25,000 men;
but that is the utmost.

The trade is chiefly linens, exported from Stade.

There are coarse woolen manufactures for home-consumption.

The mines of Hartz produce about L100,000 in silver, annually.

Such informations you may very easily get, by proper inquiries, of every
state in Germany if you will but prefer useful to frivolous
conversations.

There are many princes in Germany, who keep very few or no troops, unless
upon the approach of danger, or for the sake of profit, by letting them
out for subsidies, to great powers: In that case, you will inform
yourself what number of troops they could raise, either for their own
defense, or furnish to other powers for subsidies.

There is very little trouble, and an infinite use, in acquiring of this
knowledge. It seems to me even to be a more entertaining subject to talk
upon, tha