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14

from the place where he stood; yet lie dis cerned the steeple plainly, though it did not appear bigger than the point of a large needle. He afterwards turned his minute telescope, for so it may justly be called, towards a house, and clearly distinguished the doors and windows, and whether they were open or shut. The same gentleman reckons, iii the two eyes of a dragon fly, 25088 of these minute hemispheres. The pictures of objects seen through these eyes, must be millions of times smaller than those of the same objects painted on the retina of the human eye. There is no doubt that in sects, too small to he clearly seen without a microscope, have eyes contrived to. discern ob jects many thousand times less than themselves; for so the particles of their food must certainly be. Such calculations almost ecced the power of imagination, and are a convincing proof that the exquisite harmony of creation is as visible in the minute, as in the vast objects that surround us.

A fly is the spider's natural prey, and is remarkably cautious and nimble, 'and fre quently comes from above; it was therefore necessary that the spider should tve a quick sight, and the ability of looking upwards, forwards, and sideways, at the same time, espe chilly as she has no neck, arid her head is

fixed.


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