I 82 



PAGE 



Culture, Levei 107 



Systems of J 



Cutworms 



127 



Darwin's Potato 1 



Date of Planting 96 



Depth of Planting 93-96 



Influence on Quality 96 



Influence on Tuber Forma- 

 tion 94, 95 



Dessicated Potatoes 170 



Digestibility of Potatoes .... 168 

 Diggers, Mechanical .... 144-146 

 Digging the Crop 117, 143 



Methods . . . 143, 144 



Disease Resistance Required in 

 a Variety 71 



Relation of Temperature to . 

 Disease-resisting Varieties . 75, 116 



Disk Harrow 23,24 



Disparene 135, 137 



Distance Apart 91-93 



Doryphora decemlineata, or Po- 

 tato Beetle 124, 125 



juncta, or Southern Potato 



Beetle 124 



Drainage 17, 116 



Dried Blood 31 



Drills 106 



Dry End Rot 122 



Dry Rot 122 



Early Blight 118, 179 



Planting 97 



Ensilage, Potato 170 



Epicauta vitatta 127 



Epitrix subcrinata, or Flea- 



beetle 124 



Eyes 6 



Depth and Frequency of . . 71, 79 

 Relation of Number of Stalks 

 Producedto 62, 63 



Farm Prices 157, 161 



Feed, Potato 170 



Feeding Potatoes to Stock . 168, 169 



Value 168, 169 



Fertilizers 30, 31, 37-40 



Amounts Used 30, 37, 38 



Applying 48 



Compounding ........ 46 



Cost of 45 



For Early Potatoes .... 35, 39 



Function of 39-41 



Important Ingredients in . 42, 43 

 Influence of Period of Growth 

 Upon the Necessary .... 31 



Mixing 46, 47 



Poor Mixtures of 47, 48 



Profit from Use of 37, 38 



PAGE 



Fertilizers, Purchasing . 42, 43, 44,45 

 Value of Home Mixing of . . 46 

 Valuable .... 87, 38, 40, 176, 177 



Valuing 39,40,43-46 



Fixing New Varieties 172 



Flavor 60, 74 



Flea-beetle 82, 114, 118, 123 



Punctures Injurious . . 82, 114, 118 



Flowers 3, 5 



Formalin 69, 118, 119, 122 



Too Strong a Solution Injuri- 

 ous . 69 



Fungicides 128 



Fufiurium oxysporum . . .122, 179 



Gelechia Operculella Zell., Po- 

 tato Worm 1 25, 12C 



Good Roads, Value of ... 158, 159 



Grading Potatoes 162 



Grasshoppers 126 



Green Arsenite 135 



Green Arsenoid 135, 138 



Growth, Conditions Influenc- 

 ing . 8, 16, 30 



Effect of Chlorides on .... 84 

 Influence of Dry Weather on . 9 



Manuring 80 



Influence of Respiration on . 9 

 Influence of Time of, on Fer- 

 tilizing 31 



Obstructions to Ill, 127 



Period of 14, 31 



Habitat of Potato 1 



Hammond's Slug Shot 135 



Harrow, Acme 23 



Disk 24 



Spike-tooth 107 



Spring-tooth 23, 24 



Harrows, Action of, on the Soil 24 



Harvesting 143 



Methods of 143 



Hauling Farm Produce . . 158, 159 



Cost of 158,159 



Haulm 34,71,80,81 



Hellebore 135 



Hilling 14,16 



Time of 16 



Hills 106 



Humus, A Food for Bacteria . . 41 

 Effects on Physical Proper- 

 ties of the Soil 23 



In Soils 21,41,42 



Influence of Tillage on .... 105 



Influence on Depth of Plowing 21 



Influence on Soil Moisture . . 23 



Hybridizing 171-173 



Imports of Potatoes 157 



