Wrote Letter 48 of 1686-01-22 (AB 89) to Members of the Royal Society

January 22, 1686
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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 twelve quarto pages, written by a copyist and signed by Leeuwenhoek, is preserved at the Royal Society (MS. 1908. L 1. 79).


The original drawings are lost. According to Alle de Brieven / Collected Letters, this letter was illustrated by three figures. In the manuscript, Leeuwenhoek numbered three plates and fifteen figures in them: No. 1 Figs. A-H, No., 2 Figs. I, K, and L, and No. 3 Figs. M, N, and O. They are treated here as three figures, as they appeared in scans from the 1686 first edition of Cinnaber Naturalis.

In the text, Leeuwenhoek does not say who drew them. They were well within his skills, so he probably drew them himself with red chalk.