Observations on the growth of wheat and barley
                                Date
                            
                            
                                24 August 1688
                            
                            
                        
                            
                            
                            
                                Creator
                            
                            
                                Unknown, Artist
                            
                            
                        
                            
                            
                            
                                Object type
                            
                            
                            
                        
                            
                            
                            
                                Archive reference number
                            
                            
                            
                        
                            
                            
                            
                                Manuscript page number
                            
                            
                                p23
                            
                            
                        
                            
                            
                            
                                Material
                            
                            
                            
                        
                            
                            
                            
                                Dimensions
                            
                            
                                height (page): 181mm
width (page): 285mm
                            
                        
                            
                            
                            width (page): 285mm
                                Subject
                            
                            
                            
                        
                            
                            
                            
                                Description
                            
                            
                                10 figures in a letter from Antoni van Leeuwenhoek to the Royal Society. Another page with a set of 11 figures is also added to this letter. The original drawings are lost. 
Fig. 1: a young wheat ear under the microscope.
Fig. 2: wheat ear under the magnifying glass, kept in a box for four more days than Fig. 1.
Fig. 3: a young barley ear.
Fig. 4: the leaves enclosing the barley ear.
Fig. 5: entire piece of barley having been grown nine days.
Fig. 6: mother shoot of wheat plant.
Fig. 7: young wheat ear cut out of Fig. 6.
Fig. 8: wheat ear from dissected wheat plant before the magnifying glass.
Fig. 9: wheat ear from dissected wheat plant with the most growth.
Fig. 10: wheat ear.
                            
                            
                        
                            
                            
                            Fig. 1: a young wheat ear under the microscope.
Fig. 2: wheat ear under the magnifying glass, kept in a box for four more days than Fig. 1.
Fig. 3: a young barley ear.
Fig. 4: the leaves enclosing the barley ear.
Fig. 5: entire piece of barley having been grown nine days.
Fig. 6: mother shoot of wheat plant.
Fig. 7: young wheat ear cut out of Fig. 6.
Fig. 8: wheat ear from dissected wheat plant before the magnifying glass.
Fig. 9: wheat ear from dissected wheat plant with the most growth.
Fig. 10: wheat ear.
                                Object history
                            
                            
                                The letter and images are also printed in:
Antoni van Leeuwenhoek, Natuurs verborgentheden ontdekt, zijnde een tweede vervolg der brieven (Delft: A. Voorstad, 1689), pp. 237-60.
 
Antonio van Leeuwenhoek, Arcana naturae detecta (Delft: H. a Krooneveld, 1695), pp. 147-64.
                            
                        
                            
                            
                            Antoni van Leeuwenhoek, Natuurs verborgentheden ontdekt, zijnde een tweede vervolg der brieven (Delft: A. Voorstad, 1689), pp. 237-60.
Antonio van Leeuwenhoek, Arcana naturae detecta (Delft: H. a Krooneveld, 1695), pp. 147-64.
                                Related fellows
                            
                            
                                Antoni van Leeuwenhoek (1632 - 1723, Dutch) , Naturalist
                            
                            
                        
                            
                            
                            
                                Associated place