THE RELATION OF CLIMATE TO POMOLOGY 249 



217, Duration of blooming period. — It is a common ob- 

 servation that fruit-trees are in blossom longer some seasons 

 than others. This is due to the weather conditions at the 

 time of bloom, cold and damp prolonging the period of flores- 

 cence and bright sunny days reducing it. The following 

 data ^ will serve to illustrate this : 



1 N. Y. Agr. Exp. Sta. Bull. 407. See also Vt. Agr. Exp. Sta., 11th 

 Ann. Rept. 1897-98. p. 250. 



