Wrote Letter L-006 of 1674-04-07 to Henry Oldenburg about globules in milk and blood, the growth of hair and nails, and the anatomy of a louse

April 7, 1674
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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 two folio pages, written and signed by Leeuwenhoek, is preserved at the Royal Society (MS. 1830 Early Letters L1.2).

An excerpt was published in Philosophical Transactions, vol. 9, no. 102, dated 27 April 1674. See Publication history below.

Leeuwenhoek wrote this letter to Henry Oldenburg about “globules” in milk and blood; growth of hair, nails.

Continued observations of the structure of human blood and the milk of cows. Structure of human hair and elk's hair. Fat and flesh of various living creatures. Anatomy of the louse.