Wrote letter of 1679-04-27 (AB 44) to Constantijn Huygens

April 27, 1679
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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Leeuwenhoek wrote this letter to Huygens, unpublished in his lifetime, about the number of sperm in the milt of the cod. It was a copy of a part of Letter 43 of April 25, 1679, written to Nehemiah Grew, at the time secretary of the Royal Society.