Geography and Climatology 311 



Bradshaw seems to be distinctly more tender than 

 Lombard, especially in fruit buds, so that its northern 

 limit runs considerably to the south of the latter. 

 Still, it is sometimes fruited in favorable situations and 

 good plum years almost as far north as Lombard. 

 Most of the varieties of Primus domestica have more 

 nearly the hardiness of Lombard. 



The Damsons. These seem to be hardier than 

 Lombard and most others of the Domestica class. In 



DIAGRAM SHOWING APPROXIMATE NORTHERN LIMIT OF THE 

 SUCCESSFUL CULTURE OF LOMBARD AND BRADSHAW PLUMS. 



fact, Mr. John Craig, formerly Dominion horticul- 

 turist, informs me that "in the valley of the lower St. 

 Lawrence in northeastern Quebec, where the Damsons 

 have been cultivated since the first settlement of the 

 country, they have developed a 'botanical variety' with 

 a much more extended range northward than the or- 

 dinary varieties of Prunus domestica." 



Japanese group. The Japanese varieties vary 

 greatly in hardiness, and they have not been long 

 enough in cultivation in this country to have had their 



