Volumes 1 through 20 of Alle de Brieven / Collected Letters, the complete series. Download for free.
Master list (pdf) of all 602 L-numbers, their Leeuwenhoek number, and their Collected Letters number
nephew Anthonij Jans de Molijn (1656-1729) baptized in Oude Kerk, witnessed by Antony
DTB Delft inv. 9, fol. 185