Reference numberEL/L1/62
TitleAntoni van Leeuwenhoek, dated at Delft, to Robert Hooke
CreatorLeeuwenhoek; Antoni van (1632-1723); tradesman and microscopist
Date12 November 1680
DescriptionSigned autograph
Observing the lees in wine; experiments with fermenting wine; comparing the structure of yeast cells with erythrocytes (red blood cells); examining yeast in syrups from an apothecary's shop; observing particles in rain-water; an analysis of chyle from a cow, fat globules in milk, composition of urine; examining particles in air; discusses the function of the heart and the circulation of blood in the body; observations of the tracheae of a fly, a flea, and a cockroach; observations of the copulation of cockchafers and of dragonflies, the spermatozoids of the grass-hopper, the gnat, the flea, and of the fly; examination of mites; calculating the number of micro-organisms in a grain of sand
Eight figures attached
Extent19 sides
Place originDelft, South Holland, (United Provinces) Netherlands
Origin coordinates52.00667, 4.35556
Access statusOpen
Related materialEnglish translation see EL/L1/63
Transcribed and translated in 'Alle de brieven van Antoni van Leeuwenhoek', edited, illustrated and annotated by Committee of Dutch Scientists, vol 3, p 279
B&W negative, Red drawing of spermatozoon of dragonfly, Box N101. IM/005320
Related records in the catalogueIM/005320
URL descriptionAlso available on Early Modern Letters Online
Fellows associated with this archive
NA8438van Leeuwenhoek; Antoni (1632 - 1723); tradesman and microscopist1632 - 1723
NA8242Hooke; Robert (1635 - 1703); natural philosopher1635 - 1703
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