Section of optic nerve of a cow
                                Date
                            
                            
                                4 December 1674
                            
                            
                        
                            
                            
                            
                                Creator
                            
                            
                                Unknown, Artist
                            
                            
                        
                            
                            
                            
                                Object type
                            
                            
                            
                        
                            
                            
                            
                                Archive reference number
                            
                            
                            
                        
                            
                            
                            
                                Manuscript page number
                            
                            
                                p6
                            
                            
                        
                            
                            
                            
                                Material
                            
                            
                            
                        
                            
                            
                            
                                Dimensions
                            
                            
                                height (page): 320mm
width (page): 210mm
                            
                        
                            
                            
                            width (page): 210mm
                                Subject
                            
                            
                            
                        
                            
                            
                            
                                Description
                            
                            
                                In a letter from Antoni van Leeuwenhoek to Henry Oldenburg.
The second image on the paper, of a hexapod, was drawn after the main image had arrived at the Royal Society. Both images were printed together in the Philosophical Transactions of the Royal Society.
Van Leeuwenhoek is imagining how the hollow parts (Es & Fs) are threads that would have connected the eye to the brain, and that these hollow threads would have contained globules.
                            
                            
                        
                            
                            
                            The second image on the paper, of a hexapod, was drawn after the main image had arrived at the Royal Society. Both images were printed together in the Philosophical Transactions of the Royal Society.
Van Leeuwenhoek is imagining how the hollow parts (Es & Fs) are threads that would have connected the eye to the brain, and that these hollow threads would have contained globules.
                                Transcription
                            
                            
                                Ick heb een stuckje dat ick vande voorverhaelde gedrooghde gesicht senuwe van een Koebeest overdwars heb afgesneden, voor een microscope gestelt, ende het selve laten uijt teijckenen, tgeene ick UEd hier nevens laet toe comen.
Transcribed by the Making Visible project
                            
                        
                            
                            
                            Transcribed by the Making Visible project
                                Object history
                            
                            
                                The original specimen of the dried optic nerve of a cow was sent with this letter, and still exists in the archives of the Royal Society.
Dried optic nerve of a cow, in A. Leeuwenhoek, 'Concerning the optic nerve', Phil. Trans. vol. 10, no. 117 (August and September 1675), pp. 378-80 (ref. to fig. at 379-80).
Alle de brieven van Antoni van Leeuwenhoek, ed. by a committee of Dutch scientists, 17 vols [ongoing] (Amsterdam: Swets & Zeitlinger, 1939- ), I, 188-203 (letter 13). This letter is accompanied by a pencil-drawing, representing a transverse section of an optic nerve. On this sheet someone in London drew a ‘Hexapod’, the two figures being printed on one page of the Phil. Trans., vol. 10, no. 117 (Sept 1675), as figures 1 and 2 (p. 189). Fig. 2 should go with ‘An Extract of a Letter of July 28, 1675, by Mr. Lister from York to the Publisher; containing some Observations about Damps, together with some Relations concerning odd Worms vomited by Children, etc.’ (see ibid., p. 393).
There is a drawing in red chalk in London, British Library, Add. MS 22953, fol. 125. The image is reversed and seems to have more detail than the graphite drawing in the Royal Society. It is kept there accompanying an autograph fragment of the letter dated January 22nd 1675.
                            
                        
                            
                            
                            Dried optic nerve of a cow, in A. Leeuwenhoek, 'Concerning the optic nerve', Phil. Trans. vol. 10, no. 117 (August and September 1675), pp. 378-80 (ref. to fig. at 379-80).
Alle de brieven van Antoni van Leeuwenhoek, ed. by a committee of Dutch scientists, 17 vols [ongoing] (Amsterdam: Swets & Zeitlinger, 1939- ), I, 188-203 (letter 13). This letter is accompanied by a pencil-drawing, representing a transverse section of an optic nerve. On this sheet someone in London drew a ‘Hexapod’, the two figures being printed on one page of the Phil. Trans., vol. 10, no. 117 (Sept 1675), as figures 1 and 2 (p. 189). Fig. 2 should go with ‘An Extract of a Letter of July 28, 1675, by Mr. Lister from York to the Publisher; containing some Observations about Damps, together with some Relations concerning odd Worms vomited by Children, etc.’ (see ibid., p. 393).
There is a drawing in red chalk in London, British Library, Add. MS 22953, fol. 125. The image is reversed and seems to have more detail than the graphite drawing in the Royal Society. It is kept there accompanying an autograph fragment of the letter dated January 22nd 1675.
                                Related fellows
                            
                            
                                Antoni van Leeuwenhoek (1632 - 1723, Dutch) , Naturalist
Henry Oldenburg (1612 - 1677, German) , Scientific correspondent
                            
                        
                            
                            
                            Henry Oldenburg (1612 - 1677, German) , Scientific correspondent
                                Associated place