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ARCANA OF SCIENCE,

OR REMARKABLE FACTS AND DISCOVERIES IN NATURAL HISTORY, METEOROLOGY,
CHEMISTRY, MINERALOGY, GEOLOGY, BOTANY, ZOOLOGY, PRACTICAL MECHANICS,
STATISTICS, AND THE USEFUL ARTS.

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[Under this head it is proposed, in the future numbers of the MIRROR, to
assemble all new and remarkable facts in the several branches of science
enumerated above. These selections will be made from the Philosophical
Journals of the day, the Transactions of Public Societies, and the
various Continental Journals. The advantages of such a division in
accordance with the high and enlightened character of the present age,
must be obvious to every reader of our miscellany. At the same time it
will be our object to _concentrate_ or _condense_ from all
other authentic sources such new facts in science as are connected with
the arts of social life, and which from being scattered through
elaborate and expensive works, might thereby be lost to some portion of
our readers. In short, _popular_ discoveries in science, or all
such new facts as bear on the happiness of society will be the objects
of our choice; neither perplexing our readers with abstract research,
nor verging into the puerile amusements of a certain ingenious but
almost useless class of reasoners; it not being our object to "ring the
changes" on words. Our selections will occasionally be illustrated with