Wrote Letter 47 of 1685-10-12 (AB 88) to Members of the Royal Society about the beginning of plants in seeds; chyle, sweat, about skin, optic nerve, and bile of fish; salts in beer vinegar and lemon juice; and spirits mixed with blood and wine vinegar

October 12, 1685
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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.

The original manuscript on twenty-one quarto pages, written by a copyist and signed by Leeuwenhoek, is preserved at the Royal Society (MS. 1906. L 1. 77).