2o6 



EYE SPY 



this, and it was not until fifty years later that 

 Grew's statement was fully accepted, and then 

 only because the great Linnaeus assured the 

 world that it zvas true. But about fifty years 

 later another botanist in Germany, Sprengel, 

 made the discovery that the flower could not 

 be fertilized as these botanists had claimed, that 



in many blossoms the pollen could not fall on 

 the stigma. 



Sprengel knew that this pollen must reach the 

 stigma, but showed that in most flowers it could 

 not do so by itself. He saw that insects were 

 always working in the flowers, and that their 

 hairy bodies were generally covered with pol- 

 len, and in this way pollen grains were contin- 

 ually carried to the stigma, as they could easily 

 be in these two blossoms shown at Diagram B. 

 Sprengel then announced to the world his the- 

 ory — the dawn of discovery, the beginning of 



