3 vol. with 5 parts of "Arcana naturae detecta" in different editions, uniformily bound.

3 vol., 8vo (browning, spotting, waterstaining, some bl. corners missing).

Later half cloth, marbled paper over boards (used bindings). Partly uncut copy.

1. Continuatio arcanorum naturae detectorum. Delft, H. a Kroonevelt, 1697. [1-1 bl.]-192-[8] pp.; 7 pl. First edition, part two, of Arcana naturae detecta. Ref. STCN 055894836. Bound with: Epistolae ad societatem regiam anglicam, et alios illustres viros seu continuatio mirandorum arcanorum naturae detectorum, quadraginta epistolis contentorum [...]. Leiden, J.A. Langerak, 1719. [16]-429-[9] pp.; 24 pl. (1 pl. missing). First Latin trsl. of letters 108-146 of Van Leeuwenhoek ill. with 24 engr. pl. Ref. STCN 296535516. - 2. Arcana naturae detecta. Leiden, J.A. Langerak, 1722. front.-[2]-515-[22] pp.; 21 pl. (missing prelim. pp.). Second ed., first part, ill. with an engr. front. and 21 fold. pl. Ref. STCN 298766361. - 3. Opera omnia, Seu Arcana naturae ope exactissimorum microscopiorum detecta [...] Editio Novissima [...]. Leiden, J.A. Langerak, 1722. front.-[other title "Continuatio epistolarum" dated 1730 bound in between]-[6]-64-260 pp.; 9 pl. (missing prelim. pp.), 124-[24 pp. of "Index triplex" only paginated on the first p. with "449" ] pp.; 10 pl. (missing prelim. pp.). Second ed. of "Opera omnia" with part of the "Epistolarum" in 3rd ed. Title in red & black. Engr. front. Ref. STCN 298760045 ("Opera omnia"). - STCN 298765179 ("Continuatio epistolarum").
Hybrid set in 1st, 2nd and 3rd ed. of the Latin trsl. of letters of the famous Dutch scientist A. van Leeuwenhoek (1632-1723). "Leeuwenhoek was one of the first and greatest of the microbiologists. Many of his discoveries were communicated by him to the Royal Society in London. He discovered protozoa and bacteria. He is said to have had 250 microscopes and 419 lenses, many of them ground by himself" (Garrison & Morton). Ill. with numerous in-text engr.
Prov. Ed. Martens (bookpl.).