Upon this principle,
treatise upon treatise has been published without effecting the primary
object. The matter of Dr. Arnott's work, however, appears to us to be in
strict accordance with its title--elementary; but it is accompanied with
a variety of explanations of familiar facts on philosophical principles,
which possess attractions of a most amusive character.
The present portion of Dr. Arnott's work comprehends the subjects of
_Light_ and _Heat_, which admit of more familiar illustration than any
other branches of Natural Philosophy. Of this advantage the author has
fully availed himself in a variety of familiar exemplars, which, to
speak seriously are brought home to our very firesides. A few of these
facts will form a recreative page or two for another MIRROR: in the
meantime we quote a few illustrative observations on the most
interesting exhibitions of the day:--
"Common paintings and prints may be considered as parts of a panoramic
representation, showing as much of that general field of view which
always surrounds a spectator, as can be seen by the eye turned in one
direction, and looking through a window or other opening. The pleasure
from contemplating these is much increased by using a lens.
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