LIST OP^ ILLUSTRATIONS. 



To FACE 



Plate. Page 



I.— Land in Good Tilth 88 



II. — Teosinte (Euchlaena Mexicana) ; Species of Maize 88 



III. — Ear of Iowa Silvei' Mine; Ear of Maize, showing Poor 



Fertilization 88 



IV. — Maize with Cowpeas grown between the rows ; Maize with 



Cowpeas grown in the row 88 



V. — Silos, showing Cutter and Blower 120 



VI. — Types of Sorghums 120 



VII.— Heads of Kaffir-Corn 120 



VIII.— Plant of Feterita 120 



IX. — Potatoes of Good Quality and Poor Quality; Amount of 



Internal Medulla and Cortex 136 



X. — Potatoes in Ridges being Cultivated; Lucerne Plant 136 



XI. — Cowpea Roots, showing Nodules; Soybeans 136 



XII. — iCowpeas in Centre with Soybeans on Left and Right ; 



Green-Seeded Bancroft Cotton 136 



XIII.— Peanut Plant, Runner Type; Peanut Plant of Erect Type 168 



XIV. — Picking Cotton; Tobacco Seed-Beds 168 



XV. — Field of Turkish Tobacco ; Joiner Tobacco, showing the 

 Inflorescences of Selected Plants covered with Manilla 



Bags 168 



XVI.— Conveying Virginia Tobacco (Whole Plant Method) from 



the Field; Turkish Tobacco on Curing Racks 168 



XVII.— A Field of Algerian Oats; Rye Kernels, Soft Wheat 



Kernels 264 



XVIII.— Uba Sugar-Cane 264 



XIX.— Oat Kernels, Cross-Section of Oat Seed; Wild Oats, 



Common Oats 264 



XX. — Heads of Various Varieties of Barley 264 



XXI. — Kernel of Awned, Two-Rowed Barley; Kernels of Hooded 



Six-Rowed Barley 280 



XXII. — Barley Kernels with Hull Removed : Good Malting 



Barley, Poor Malting Barley 280 



XXIII.— Millets 280 



XXIV. — Mangels; Sugar Beets 280 



XXV. — Sections of Young Mangel, showing Rings of Vascular 



Bundles 328 



XXVI.— Plot of Sunflowers 328 



XXVII. — Mung Bean (Phaseolus Aureus) 328 



XXVIII.— Old Man Saltbush (Atriplex Nummularia) ; Spineless 



Cactus 328 



