Credit: © The Royal Society
                             
                         
                     
                         
                         
                             
                                 Image number: RS.9112
                             
                         
                         
                     
                 
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            Microscopical observations of the structure of animal teeth
                                Date
                            
                            
                                1686
                            
                            
                        
                            
                            
                            
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                                Dimensions
                            
                            
                                height (print): 40mm
width (print): 81mm
                            
                        
                            
                            
                            width (print): 81mm
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                                Description
                            
                            
                                Illustration accompanying a letter describing Antoni van Leeuwenhoek's microscopical observations of the structure of human and animal teeth, dated 4 April 1687. The figures shows salt crystals found in the dental pulp of a horse (figs. A-K). 
                            
                            
                        
                            
                            
                            
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