Royal Society read Letter L-584 about blood, Leeuwenhoek's health, and his position on ovaries
Date:
June 8, 1723
The date is New Style, which was eleven days ahead of the Old Style date of 28 May 1723 used in London.
Document:
Royal Society, Journal Book, vol. 13, p. 291
A Letter from Mr. Leeuwenhoeck concerning the magnitude of the globls of Blood in answer to a Letter from Dr. Jurin was read; & he was ordered Thanks.