Examination of an egg of a silkworm
                                Date
                            
                            
                                11 July 1687
                            
                            
                        
                            
                            
                            
                                Creator
                            
                            
                                Unknown, Artist
                            
                            
                        
                            
                            
                            
                                Object type
                            
                            
                            
                        
                            
                            
                            
                                Archive reference number
                            
                            
                            
                        
                            
                            
                            
                                Manuscript page number
                            
                            
                                p7a
                            
                            
                        
                            
                            
                            
                                Material
                            
                            
                            
                        
                            
                            
                            
                                Dimensions
                            
                            
                                height (page): 80mm
width (page): 114mm
                            
                        
                            
                            
                            width (page): 114mm
                                Subject
                            
                            
                            
                        
                            
                            
                            
                                Description
                            
                            
                                Two figures in a letter from Antoni van Leeuwenhoek to the Royal Society.
Fig. 1: blackish vessels (as well as the draftsman could perceive them, Leeuwenhoek says) that lie on one side of the head of an unborn silkworm.
Fig. 2: cut-through shell of a silkworm egg.
                            
                            
                        
                            
                            
                            Fig. 1: blackish vessels (as well as the draftsman could perceive them, Leeuwenhoek says) that lie on one side of the head of an unborn silkworm.
Fig. 2: cut-through shell of a silkworm egg.
                                Object history
                            
                            
                                Printed images taken from a published version of the letter (the same plate is in the Dutch and Latin versions): 
Antoni van Leeuwenhoek, Vervolg der Brieven, geschreven aan de Wytvermaarde Koninglijke Societeit tot Londen (Leiden: C. Boutesteijn, 1687), pp. 53-72.
Antoni van Leeuwenhoek, Continuatio Epistolarum (Leiden: Boutesteyn, 1689), pp. 41-55.
                            
                        
                            
                            
                            Antoni van Leeuwenhoek, Vervolg der Brieven, geschreven aan de Wytvermaarde Koninglijke Societeit tot Londen (Leiden: C. Boutesteijn, 1687), pp. 53-72.
Antoni van Leeuwenhoek, Continuatio Epistolarum (Leiden: Boutesteyn, 1689), pp. 41-55.
                                Related fellows
                            
                            
                                Antoni van Leeuwenhoek (1632 - 1723, Dutch) , Naturalist
                            
                            
                        
                            
                            
                            
                                Associated place