Gall nuts on the leaf of a willow tree and the larvae of a sawfly
Date
28 January 1701
Creator
Unknown, Artist
Object type
Archive reference number
Manuscript page number
p9
Material
Dimensions
height (page): 224mm
width (page): 175mm
width (page): 175mm
Subject
Description
Eight figures in a letter by Antoni van Leeuwenhoek to Hans Sloane.
Fig. A: leaf of a willow tree
Fig. 1: little fly, in real size
Fig. 2: a sting-like part, which under the microscope turned out to be closed (and therefore cannot be a sting) and covered with hairs
Fig. 3: the sting, after being separated from its 'case'
Fig. 4: a detail of the sting shown in fig. 3
Fig. 5: the second case
Fig. 6: a larva
Fig. 7: a pupa.
Fig. A: leaf of a willow tree
Fig. 1: little fly, in real size
Fig. 2: a sting-like part, which under the microscope turned out to be closed (and therefore cannot be a sting) and covered with hairs
Fig. 3: the sting, after being separated from its 'case'
Fig. 4: a detail of the sting shown in fig. 3
Fig. 5: the second case
Fig. 6: a larva
Fig. 7: a pupa.
Object history
The Journal book mentions on 26 February 1700/1, 'A Letter was read from Mr Leeuwenhoek, wherein he gives an Account of Worms on Willows, & of Cheese-mites. He was order'd the Thanks of the Society' (JBO/10/212).
The letter with images was printed in:
A. Leeuwenhoek, ‘Concerning Excrescencies Growing on Willow Leaves’, Phil. Trans. vol. 23, no. 269 (February 1701), pp. 786-92.
A. van Leeuwenhoek, Sevende vervolg der brieven (Delft: H. van Krooneveld, 1702), pp. 308-19.
A. van Leeuwenhoek, Epistolae Ad Societatem Regiam Anglicam (Leiden: J. A. Langerak, 1719), pp. 293-303.
The letter with images was printed in:
A. Leeuwenhoek, ‘Concerning Excrescencies Growing on Willow Leaves’, Phil. Trans. vol. 23, no. 269 (February 1701), pp. 786-92.
A. van Leeuwenhoek, Sevende vervolg der brieven (Delft: H. van Krooneveld, 1702), pp. 308-19.
A. van Leeuwenhoek, Epistolae Ad Societatem Regiam Anglicam (Leiden: J. A. Langerak, 1719), pp. 293-303.
Related fellows
Antoni van Leeuwenhoek (1632 - 1723, Dutch) , Naturalist
Hans Sloane (1660 - 1753, Irish) , Physician
Hans Sloane (1660 - 1753, Irish) , Physician
Associated place