XXXII 



Geography and Climatology 



HE relationship existing between 

 the fruit tree and the climate in 

 which it lives is evidently one 

 of the most important practical 

 and scientific matters connected 

 with fruit growing. Yet only 

 in a few instances has this rela- 

 tionship been carefully investi- 

 gated. The only part of this 

 series of problems which has received general attention 

 is the matter of hardiness. Ever since the beginning 

 of tree planting in America, horticulturists have been 

 asking, Is this variety hardy? Will it stand our win- 

 ters? We have thus accumulated a large mass of 

 information on this particular point, most of which, 

 however, is totally undigested and incapable of any- 

 thing but a local application. 



With respect to the hardiness of plums, it is to be 

 308 



