and originality of genius, proceeds to the work of analysis, diagnosis
and illustration.

Here and there a case strikes me as of a kind to amuse or horrify a lay
reader with an interest quite different from the peculiar one which it
may possess for an expert. With slight modifications, chiefly of
language, and of course a change of names, I copy the following. The
narrator is Dr. Martin Hesselius. I find it among the voluminous notes
of cases which he made during a tour in England about sixty-four years
ago.

It is related in series of letters to his friend Professor Van Loo of
Leyden. The professor was not a physician, but a chemist, and a man who
read history and metaphysics and medicine, and had, in his day, written
a play.

The narrative is therefore, if somewhat less valuable as a medical
record, necessarily written in a manner more likely to interest an
unlearned reader.

These letters, from a memorandum attached, appear to have been returned
on the death of the professor, in 1819, to Dr. Hesselius. They are
written, some in English, some in French, but the greater part in
German. I am a faithful, though I am conscious, by no means a graceful
translator, and although here and there I omit some passages, and
shorten others, and disguise names, I have interpolated nothing.