Bui. 64, U. S. Dept. of Agriculture. 
Plate XI. 
Fig. 1.— Potato Curly-Dwarf. A Diseased and a Healthy Plant of the Same 
Variety, Seedling No. 16503, Alexander No. 1 Red X Keeper. Houlton, 
Me., 1912. 
Fig. 2.— Potato Curly-Dwarf. An Advanced Case Between Two Nearly Nor- 
mal Hills. No. 13372, Holborn Abundance X Irish Seedling. Compare 
Plate XIII, Figure 1, Which Shows the Yield from These Hills. Houlton, 
Me., 1913. 
