Bui. 195, U. S. Dept. of Agriculture. 



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Plate IX. 





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Fig. 1.— An Extra-Promising First-Year Seedling, Crop of 1910; 24 Tubers. 



Fio. 2.— A Prolific and Fairly Promising First-Year Seedling, Crop 



1 12 Tubers. 



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