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You must persuade your father to procure one. It was in 1661 rather more than two hundred years ago that an Italian and a Dutchman discovered, each by himself in his own country, the microscopic population of the blood. The name of the Italian is not very difficult Malpighi. As to the Dutchman's, you must pronounce it in the best way you can he was called Leeuwenhock.
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