Wrote Letter L-268 of 1695-08-20 to Frederik Adriaan van Reede about again about oysters and their sperm and aphids and other parasites

August 20, 1695
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Text of the letter in the original Dutch and in English translation from Alle de Brieven. The Collected Letters at the DBNL - De Digitale Bibliotheek voor de Nederlandse Letteren

Leeuwenhoek wrote this letter about …

Oyster larvae, which, however, are found to be dead. Searches in vain for the sperm of male oysters. Aphids originating from the rose are viviparous. They differ from the mealy plum aphids. Larvae of hymenopterous parasites in the aphids, on the eggs, and the intestinal movement in the parasites. Little animals originating from cherry trees have also been parasitized.