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
daughter Maria made will describing herself as sickly. Roelandus Van Edenburgh notary
ONA Delft inv. 2244, fol. 119, 120