Structure of the diaphragm
                                Date
                            
                            
                                31 March 1723
                            
                            
                        
                            
                            
                            
                                Object type
                            
                            
                            
                        
                            
                            
                            
                                Archive reference number
                            
                            
                            
                        
                            
                            
                            
                                Manuscript page number
                            
                            
                                p310
                            
                            
                        
                            
                            
                            
                                Material
                            
                            
                            
                        
                            
                            
                            
                                Dimensions
                            
                            
                                height (page): 317mm
width (page): 195mm
                            
                        
                            
                            
                            width (page): 195mm
                                Subject
                            
                            
                            
                        
                            
                            
                            
                                Content object
                            
                            
                            
                        
                            
                            
                            
                                Description
                            
                            
                                Seven figures from Antoni van Leeuwenhoek in a letter to the Royal Society. The original drawings are now lost. 
 
Engraved/etched for Philosophical Transactions of the Royal Society, vol. 32, no. 379 (1732). The six images are part of a larger plate with images, therefore the numbering starts with 2.
Fig. 2: diaphragm of a sheep, in which BG, CF and DE are the tendons as observed with a microscope.
Fig. 3: a detail/close-up of one of the fibres/tendons.
Fig. 4: a fibre, in which the parts VT and WX are in rest.
Fig. 5: the true size of the bit of diaphragm studied.
Fig. 6: diaphragm of a cow with several very visible fibres.
Fig. 7: a specimen with four-layered fibres on each side of the membrane in a cow's diaphragm.
Fig. 8: a small part of the diaphragm of a cow.
                            
                            
                        
                            
                            
                            Engraved/etched for Philosophical Transactions of the Royal Society, vol. 32, no. 379 (1732). The six images are part of a larger plate with images, therefore the numbering starts with 2.
Fig. 2: diaphragm of a sheep, in which BG, CF and DE are the tendons as observed with a microscope.
Fig. 3: a detail/close-up of one of the fibres/tendons.
Fig. 4: a fibre, in which the parts VT and WX are in rest.
Fig. 5: the true size of the bit of diaphragm studied.
Fig. 6: diaphragm of a cow with several very visible fibres.
Fig. 7: a specimen with four-layered fibres on each side of the membrane in a cow's diaphragm.
Fig. 8: a small part of the diaphragm of a cow.
                                Object history
                            
                            
                                Figures printed in Antoni van Leeuwenhoek, 'De structura diaphragmatis', Phil. Trans. vol. 32, no. 379 (1723), pp. 400-07.
                            
                            
                        
                            
                            
                            
                                Related fellows
                            
                            
                                Antoni van Leeuwenhoek (1632 - 1723, Dutch) , Naturalist
                            
                            
                        
                            
                            
                            
                                Associated place