Anthoinie Heinsius wrote Letter L-127 to Leeuwenhoek about his observations concerning generation and blood circulation
Date:
June 7, 1683
This letter is known only by reference in other letters.
In this letter, Anthonie Heinsius writes that he is pleased by what he read in Leeuwenhoek’s letter of 20 May about the series of observations concerning generation and blood circulation that he was soon to send to the Royal Society.
Document:
Letter L-126 of 20 May 1683 to Anthonie Heinsius
At the end of L.’s manuscript, Heinsius wrote, “Mss. Leeuwenhouck 20 May Resp. 7 Juni 1683.”
Letter L-129 of 22 July 1683 to Anthonie Heinsius
I was glad to see from your welcome letter of June 7th that your excellency was pleased with my speculations and investigations. For one thing, I am afraid your excellency overrates my suppositions.
