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SICILY AND MALTA. 155
indeed, I am apt to believe, will be its
fate. For as this comet has no tail, there
is,, of consequence, no apparent repulsion.
If it was repelled, its atmosphere like the
others, would be driven away in the oppo-
site direction from the sun; I therefore
do not see any posTible method it has of
escaping.
These comets are certainly bodies of a
very disferent nature from those with tails,
to which indeed they appear even to bear a
much less resemblance than they do to pla-
nets : and it is no small proof of the little
progress we have made in the knowledge
of the universe, that they have not as yet
been diuinguished by a disserent name.
This is the third kind of body that has
been discovered in our system, that all
appear essentially different from each other,
that are probably regulated by different
laws, and intended for very disserent pur-
poses.
 
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