Wrote Letter L-114 of 1681-11-04 to Robert Hooke about hog bristles, shedding hair, blackheads; living little animals in excrement, horse urine, clay, and gout

November 4, 1681
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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 thirteen quarto pages, written and signed by Leeuwenhoek, is preserved at the Royal Society (MS. 1893. Early Letters L1.64). It has four figures in red chalk on small sheets pasted onto one folio page.

Robert Hooke published an excerpt from the letter in Philosophical Collections, no. 3, dated 10 January 1682. See Publication history below.

Leeuwenhoek had not written any letters for almost a year, that is, most of 1681. During that year, he sat for Cornelis de Man's Anatomy Lesson of Dr. 's Gravezande. In April, his cousin Jannitgen Huijchs Leeuwenhoek died. In June, another cousin, Maria Maertens Leeuwenhoek, married Leeuwenhoek's Staduis colleague Jan den Appel. A week after that, the city's other camerbewaarder, Daniel Bogart, was buried. He and Leeuwenhoek had worked together for the mayors and magistrates for twenty years.