Mr Canning's Parasites


NATURE descends down to infinite smallness. Mr. Canning has his

parasites; and if you take a large buzzing blue-bottle fly, and look at

it in a microscope, you may see twenty or thirty little ugly insects

crawling about it, which doubtless think their fly to be the bluest,

grandest, merriest, most important animal in the universe, and are



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