16G MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



EXPLAXATIOX OF TEXT FIGURE 2 

 In the tenting experiments entire trees were enclosed in a cheesecloth tent 

 throughout the period of bloom. The strips of cheesecloth were overlapj^ed and 

 nailed under laths to a frame so insects could neither leave the tent nor enter 

 from \vithout. A hive of bees was jjlaced within each tent. The bees worked 

 among the flowers most industriously on most days throughout the entire jjeriod 

 of flowering. Under the forced insect pollination each of the four trees tented 

 did mature some fruit. The largest number of fruits for any tree was 22. The 

 results indicate that trees of these varieties are not able to yield full crops to 

 self-pollination only. 



respectively. The Panchoy tree which had been tented bore two 

 fruits, while the one other tree of this variety in the same grove 

 bore 12 frnits. The tented tree of Linda had 22 fruits while nine 

 other trees of this variety no larger than the tented tree sub- 

 jected to open orchard pollination had fruit as follows : 23, 30, 

 41, 55, 56, 62, 64, 88, and 138. The tree of the Trapp variety bore 

 18 fruits. On nine other trees of this variety, quite similar in 

 size and standing in the vicinity of the tented tree, there ^vere 

 fruit as follows : 3, 6, 7, 8, 12, 12," 23, 24, and 64. 



Each of the tented trees did set some fruit. The yields were 

 low for Panchoy and Taft. The tented tree of Trapp seemed to 

 do as well as about half of the trees of the variety around it. 

 The highest yield on a tented tree, 22 for the Linda, was decid- 

 edly lower than that of other trees of this variety. 



