ON PAPER-SHELL WALNUTS 



There is an Asiatic species, known as Juglans 

 Manschurica, that may be regarded as interme- 

 diate in form between the butternut and the black 

 walnut. It rather closely resembles the Japanese 

 walnut in general appearance, but it bears a nut 

 with rough surface like the butternut, and the meat 

 is also similar in quality and appearance to that 

 of the butternut, being superior to that of the black 

 walnut. 



This tree may be said to form a connecting link 

 between the Japanese walnut, the American black 

 walnut, and the butternut. Possibly it could be 

 used advantageously in a hybridizing experiment 

 that would ultimately blend the strains of these 

 different species. 



THE CULTIVATION OF THE WALNUTS 



The idea of growing walnuts commercially is 

 one that has scarcely been thought of in the tem- 

 perate regions of the United States. Even in 

 regions of the middle and eastern states where the 

 English walnut will grow, it has never been culti- 

 vated extensively, and of course this tree is too 

 tender to be profitably grown in the northern 

 states. But the black walnut and butternut, on the 

 other hand, are exceedingly hardy trees, thriving 

 even in regions where the winters are excessively 

 cold. 



All of these trees, however, require a deep, rich, 



[55] 



