34 



VARIETIES AND NURSERY STOCK 



be corrected, as we are able to learn more concerning the behavior of these 

 varieties under different conditions. 



" In Table II these same varieties are grouped under their optimum 

 temperatures for convenience in reference. 



" In Table I there is also given for some varieties the range of tempera- 

 ture which they can stand without serious deterioration. This is, as 

 already stated, closely connected with the season of the variety, being wide 

 with early sorts and relatively narrow with most winter sorts. Just how 

 much diflerence there is between the ranges of varieties of the same season 

 is difficult to say. It is complicated with a variety of related questions. 



" In the case of a few of the varieties given in Table I an attempt is 

 made to give their hardiness with respect to the winter cold. Inasmuch 

 as the ability of the tree to withstand cold depends on a variety of factors 

 other than the temperature it is of no use to attempt to state this in 

 degrees. The designation Ex. H. is used for tiie varieties equal in hardiness 

 to those classified as of the first degree of hardiness; the designation V. H. 

 for those of the second degree of hardiness (by the jNIinnesota Horticultural 

 Society) ; and the designation H., M., and T. (Hardy, Medium and Tender) 

 for various degrees of hardiness below these two classes. Many of the more 

 southern sorts are not grown far enough north on account of a lack of 

 summer heat to test their winter hardiness in a satisfactory manner. 

 Therefore it is impossible to make any statements regarding them, nor 

 would there be any practical value in such statements were they possible." 



Table I. — Mean Summer Temperatures. 



(Dr. J. K. Shaw^ 



Akin 



Alexander . . . 



Arctic 



Arkansas . . . . 

 Arkansas 



Black 



Babbit 



Bailey Sweet 



Baldwin 



Baxter 



Beach 



Ben Davis, . . 



Benoni 



Bethel 



Bietigheimer. 



Bismarck. . . . 



Black Gilli- 

 flower 



Blenheim. . . . 



Blue Pear- 

 main 



Boiken 



Bonum 



Borovinka. . . 



Bough 



Buckingham . 



Buncombe. . . 



Cabashea 



Cannon Pear- 



mam. 



65' 



3 03 



lis 



♦The average of the mean monthly temperatures for March to September inclusive. 



Under "Range"— V. N.=Very Narrow, N=Narrow, M =Mediuni, W =Wide, V. W 

 Very Wide. 



Under "Hardiness"— Ex. H.=Extra Hardy, V. H.=Very Hardv. H.=Hardy, M. 

 Medium, T. = Tender. 



