lo Jan., 1 9 II.] The PolUnatio)i of Pear Blossoms. 7 



were varieties of pears to be planted that were not coincident in their 

 time of blooming. As a result of observations, it is possible to lay down 

 a general rule, as to the most useful varieties blooming at similar periods, 

 for the purpose of cross-pollination. It \s not necessary to have the 

 time of full bloom of each variety coincident, as pear trees are in flower 

 from two or three weeks, according to the situation and climate. Obser- 

 vations taken this season, in September and October, 1910, show that 

 in an ordinary orchard situation, a pear tree's average time of bloom, 

 from first to last, is about nineteen days ; while, in sheltered locations, 

 the time is extended to from four to six days longer. 







->^ 



^ 



PEAR TREES IN BLOSSOM AT BURNLEY. 



The following table shows the full period of bloom of fifteen pear 

 trees during the season 19 10 : — 



♦ These trees were partially sheltered and proteeted by large ornamental trees, which were growing 

 on the side from which the rain came. The sheltered position thus prolonged the time of blooming. 



