image EL_L4_40_Fig
Image number: RS.15812
Credit: ©The Royal Society

Observations of mites and beetles


22 September 1711


Unknown, Artist

Object type

Archive reference number

Manuscript page number




height (page): 155mm
width (page): 170mm



Five figures. Drawn by an anonymous draftsman. Letter by Antoni van Leeuwenhoek to the Royal Society.

Fig. 1: hair of a mite, as the draftsman observed through a magnifying glass.
Fig. 2: a hair from the body of a honey-bee.
Fig. 3: skin of a small animal, a worm, found on dried fish. (According to Alle de Brieven, vol. 16, p. 305, Leeuwenhoek is talking about the Whitemarked spider beetle.)
Fig. 4: a hairy part that could be found on the shed skin of this animal.
Fig. 5: the beetle that grew out of this worm.

Object history

A. Leeuwenhoek, ‘Additional observations upon the production of mites’, Phil. Trans., vol. 27, no. 333 (January, February and March 1712), pp. 398-415, figs 1-5.

Related Fellows

Antoni van Leeuwenhoek (1632-1723, Dutch), Naturalist

Associated place

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