Plate IX. 



Angonleme pears. Figs. 1 and 2 are from flowers covered with paper bags, there- 

 fore self-pollinated. Fig. 3 is from a flower pollinated with Anjou. The drawing 

 is from the largest of these specimens. Fig. 4 is from a flower pollinated with 

 Seckel, the only fruit from that kind of pollen studied. A large series of specimens 

 would be necesssary to determine whether there is any constant difference between 

 Anjou and Seckel pollen. The study of these fruits is on pp. 57, 58. 

 104 



