---
{4} The Charts, Nos. 3 and 4, were copied in Paris, before the
revolution, and highly approved of by the Academy of Sciences. No. 2,
though of late invention, has been copied in France and Germany. Of
No. 1, the public has yet to judge, and, perhaps, it will treat me with
indulgence and good nature, as on former occasions.
-=-

[end of page #xv]

comprehension of the subject, than all that I had learnt from
occasional reading, for half of my lifetime; and, on the supposition
that what was of so much use to me, might be of some to others, I have
given it with a tolerable degree of accuracy.

No. 2, relates entirely to the present state of nations in Europe, and
the extent, revenue, and population, as represented, are taken from the
most accurate documents. Where statistical writers differed, I
followed him who appeared to me the most likely to be right.

Nos. 3 and 4, relate entirely to England, and are drawn from the most
accurate documents.

Opposite to each Chart are descriptions and explanations.

The reader will find, five minutes attention to the principle on which
they are constructed, a saving of much labour and time; but, without
that trifling attention, he may as well look at a blank sheet of paper
as at one of the Charts.