Wondere dingen in yders aard

Brief article mentioning Leeuwenhoek, one of many by J. van Dueren in Stephen Blankaart's Collectanea medico-physica, oft Hollands jaar-register der genees- en natuur-kundige aanmerkingen, the second and third part for 1681 and 1682.

Collectanea medico-physica was published periodically from 1680 to 1688.

Leeuwenhoek referred to this article in Letter 45 of March 30, 1685.