42 



THE POLLINATION OF PEAR FLOWERS. 



BOSC. 



liecord of 1 tree at Jlochester (Series III). 



Tree 

 No. 



Metliod of treatment. 



K iiml > er of cl a s ter s . 



Fruits set. 



lieiiiarks. 



55 



Covered with paper bags 



(:i727-:!75J). 

 Exposed to insect visits 



42 



02 



Ko. 

 2 



96 



Per ct. 

 0.6 



20.6 



A fine tree, with heavy, d.irl:- 

 green foliage. 



liecord of 2 trees in Smith orchard, Geneva (Series IV). 



56 



Covered with paper bags 

 (317-:!-7). _ 



25 





 





 





57 



Covered with paper bags 



(103-110). 

 Exposeil to insect visits . . - . 



11 



38 



11 



2.4 

 3 





The results obtained with this variety are contradictory, leaving the 

 question still in doubt. The result of the Avork on tree 'No. 57 shows 

 that the Bosc can set fruits under cover, so that this variety may be 

 Ijrovisionally classed with the self- fertilizers. 



BOUSSOCK. • 



Becord of 1 tree at Bochester (Series III), 



Tree 

 No. 



Method of treatment. 



Number of clusters. 



Fruits set. 



PLemarks. 



58 



Covered witli paper bags 



(3:380-3408). 

 Exposed to insect visits 



71 



91 



No. 

 6 



180 



Per ct. 

 1.1 



Large, healthy standard; 

 bloomed and fruited veiy 

 heavily. 



Becord of 1 tree in Smith orcliard, Geneva (Series IV). 



59 



Covered with paper bags 



(156-104). 

 Exposed to insect visits 







 27 









31 



11.1 





The work on the Boussock indicates that its capability for self-ferti- 

 lization is slight. Further experiments may show a greater ability 

 to self- fertilize than the above figures indicate. Its great productive- 

 ness leads to this opinion. 



BROCKWORTn. 



Becord of 1 tree at Bochester (Series III). 



Covered with paper bags 



(2845-2854). 

 Exposed to insect visits 



0.9 

 2.6 



Medium - sized dwarf, not 

 healthy; bloomed well, but 

 fruited poorly. 



