Observations of chalk of gout stones
                                Date
                            
                            
                                4 January 1692
                            
                            
                        
                            
                            
                            
                                Creator
                            
                            
                                Unknown, Artist
                            
                            
                        
                            
                            
                            
                                Object type
                            
                            
                            
                        
                            
                            
                            
                                Archive reference number
                            
                            
                            
                        
                            
                            
                            
                                Manuscript page number
                            
                            
                                p12a
                            
                            
                        
                            
                            
                            
                                Material
                            
                            
                            
                        
                            
                            
                            
                                Dimensions
                            
                            
                                height (page): 90mm
width (page): 88mm
                            
                        
                            
                            
                            width (page): 88mm
                                Subject
                            
                            
                            
                        
                            
                            
                            
                                Description
                            
                            
                                Four figures in a letter from Antoni van Leeuwenhoek to the Royal Society. The original drawings are lost. 
Fig. 1: chalk-like substance as seen through the microscope
Fig. 2: long, tapered salt particles
Fig. 3: particles of caput mortuum
Fig. 4: two salt figures.
                            
                            
                        
                            
                            
                            Fig. 1: chalk-like substance as seen through the microscope
Fig. 2: long, tapered salt particles
Fig. 3: particles of caput mortuum
Fig. 4: two salt figures.
                                Object history
                            
                            
                                Letter and figures published also as:
Antoni van Leeuwenhoek, Derde vervolg der brieven (Delft: H. van Kroonevelt, 1693), pp. 362-74.
Antonio van Leeuwenhoek, Arcana naturae detecta (Delft: H. a Krooneveld, 1695), pp. 237-45. (Latin translation.)
                            
                        
                            
                            
                            Antoni van Leeuwenhoek, Derde vervolg der brieven (Delft: H. van Kroonevelt, 1693), pp. 362-74.
Antonio van Leeuwenhoek, Arcana naturae detecta (Delft: H. a Krooneveld, 1695), pp. 237-45. (Latin translation.)
                                Related fellows
                            
                            
                                Antoni van Leeuwenhoek (1632 - 1723, Dutch) , Naturalist
                            
                            
                        
                            
                            
                            
                                Associated place