1921.] 



Pollination of Fruits. 



L88 



The following plums failed to mature fruit with their own 

 pollen: — Admiral, Black Diamond, Coe's Golden Drop, Golden 

 Gage, Jefferson, July Greengage, Old Greengage, Pond's 

 Seedling, and President. At Merton, the additional varieties 

 that showed themselves self-sterile were : — Coe's Violet, Crimson 

 Drop, McLaughlin's Gage. Early Greengage, Peine Claude 

 d'Althann, Wyedale, Frogmore Orleans, Late Orleans, Prune 

 d'Agen, Primate, and Frogmore Damson. 



In certain varieties of plum, cherry, and. perhaps apple and 

 pear, it is advisable, in order to obtain the largest quantity of the 

 host fruit, to ascertain whether they cross-pollinate each other 

 well, in addition to planting together varieties that flower at 

 the same time. 



Tn trials with four varieties of outdoor peaches, each appeared 

 to be self-fertile, but fruiting was increased by hand pollinating 

 with a camel-hair brush. 



