THE WALNUT 



the upper Sacramento Valley at Chico from three to 

 five feet in diameter. The trees at the latter place 

 were planted by the late John Bidwell in 1862. We 

 were informed by residents of Chico that occasion- 

 ally during hot periods in summer the temperature 

 is 115 Fahrenheit. 



It flourishes in the Sierras at four thousand feet 

 elevation and is not injured by the cold and snows 

 of winter. It thrives best in deep moist alluvial 

 soil. Yet, it is a wonderful tree, and seems to have 

 retained every characteristic given it by its environ- 

 ment thru the ages of change and wanderings. It 

 will grow wherever the oak can exist. 



For twenty years we have studied its growth at 

 three thousand feet elevation in the Sierras together 

 with the Eastern black. And in similar soil and 

 culture, it grew to twice the diameter of the latter. 

 As a sap producer it is a wonder, and herein is its 

 value for stock purposes. Owing to this quality, it 

 can be more easily grafted than other varieties. 



The illustration was made from a photo of a Cali- 

 fornia black walnut, twenty years old, and twenty 

 inches in diameter below the fork. 



It was grafted to the Franquette April 5, 1908; 

 and the photo was taken June 1, 1909. 



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