Plate II. 



Bnrtlctt pears self-pollinated. No. 3039 is from a flower inclosed in a paper bag 

 without emasculation. No. 3884 is from an emasculated flower hand -pollinated with 

 Bartlett pollen. For photographs of the seeds of these fruits see PL xi, and for 

 descri})tions see pp. 60 and 63-65. 

 90 



