Essay de Dioptrique

Author: 
Hartsoeker, N.
Publisher: 
Paris: J. Anisson
Year: 
1694

full text facsimile available to download from Google Books.

First published in French. It was published in Dutch translation by A. Blok as Proeve der Deurzicht-kunde in 1699. Leeuwenhoek had a copy in December 1698 when he wrote to Harmen van Zoelen about Hartsoeker's claim to have been the first to discover sperm. The Dutch translation had a cover illustration by Jan Luykens.