LIST OF ILLUSTRATIONS 



FACING PAGE 



"Picker" in Aspinwall planter . . .. . ;.. . 123 



Aspinwall two-row planter > ' . . . . .. 123 



planter with fertilizer attachment V . 123 



potato sorter . . * . . . . 123 



potato planter . . , . . ... . 124 



sprayer . ;. . . . . 124 



Thompson's Greeley potato sorter . . . . . 125 



Dowden potato digger at work on Mt. Sopris Farm . 126 



Iron Age digger at work 126 



Hauling potatoes to storehouse in "half -sacks" Mt. 



Sopris Farm . 126 



Iron Age planter at work . . . . . .127 



New potato cellar of Commissioner of Agriculture, A. 



W. Gilman . 130 



Potato storage cellar plan 131 



Wart disease of potatoes 172 



Early blight 173 



Potato Scab ..... ... 173 



Late blight diseased leaf and tuber of potato . .178 

 Late blight last stages of disease . . . .179 



Hill of potatoes partly diseased by dry-rot (Fusarium) 194 



Various stages in destruction of potatoes by Fusarium 195 



Rhizoctonia showing development of "little potatoes" 198 



" showing stem of young potato plant 



affected from the seed 199 



The potato eelworm, showing eggs, worm and infected 



potato 206 



Iron Age sprayer in operation 207 



E. L. Cleveland, Houlton, Maine 226 



E. L. Cleveland Co. potato storehouse .... 227 



Carbondale Peachblow potatoes on exhibition . . 312 



An attractive English exhibit of potatoes . . . 313 



Map showing some potato districts in the United States 322 



D. E. Burley and C. H. Schlaacks . .... 323 



James J. Hill 324 



Eugene H. Grubb .... . . 325 



Mt. Sopris and a part of the Carbondale district, Colo. . 374 

 Lord Ogilvy, agricultural editor of Denver Post, 



Denver, Colo 375 



