Pollination: or How to Cross Plants 283 



pair of small, long-handled surgeon's scissors (see Fig. 

 91), removing everything but the pistil. The operation 

 is explained in Fig. 89, which shows the tobacco flower. 



FIG. 90. Zinnia flowers ; the upper head ready for emasculation, the 

 lower one showing the operation performed. 



The flower at the left shows the pin-head stigma in the 

 center of the throat, and the five anthers surrounding 

 it. The second flower is spread open for the purpose 

 of showing these organs. The third figure is a bud in 



