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VON KEMPELEN AND HIS DISCOVERY
AFTER THE very minute and elaborate paper by Arago, to say nothing of
the summary in 'Silliman's Journal,' with the detailed statement just
published by Lieutenant Maury, it will not be supposed, of course,
that in offering a few hurried remarks in reference to Von Kempelen's
discovery, I have any design to look at the subject in a scientific
point of view. My object is simply, in the first place, to say a few
words of Von Kempelen himself (with whom, some years ago, I had the
honor of a slight personal acquaintance), since every thing which
concerns him must necessarily, at this moment, be of interest; and, in
the second place, to look in a general way, and speculatively, at the
results of the discovery.
It may be as well, however, to premise the cursory observations which
I have to offer, by denying, very decidedly, what seems to be a
general impression (gleaned, as usual in a case of this kind, from the
newspapers), viz.: that this discovery, astounding as it unquestionably
is, is unanticipated.
By reference to the 'Diary of Sir Humphrey Davy' (Cottle and Munroe,
London, pp. 150), it will be seen at pp. 53 and 82, that this
illustrious chemist had not only conceived the idea now in question,
but had actually made no inconsiderable progress, experimentally, in the
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