XVm CONTENTS 



Solanum tuberosum (Potato) — Habit — Roots — Stems — 

 Leaves — Flower — Opening of Flower and Pollination — Fruit 

 —Seed — Germination — Development of the Seedling — Tubers 

 from Seedlings — Tuberization — Fungus Theory of Tuberiza- 

 tion — History — Varieties — Tuber Morphology — Periderm or 

 Skin — Vascular Ring — P arenchym a — Cortex — Medulla — 

 Shape — Color — Eyes — Germination or Sprouting of Tuber 

 — Physical Composition of Potatoes- — Chemical Composition 

 of Potatoes — Starch and Sugar — "Mealiness" — Quality of 

 Potatoes — Degree of Maturity and Quality— Degeneracy 

 of the Potato — Environmental Relations — Uses of Potatoes — 



Production of Potatoes 561-585 



Solanum melongena (Eggplant, Guinea Squash) — Description 



— Types and Varieties 585-587 



Lycopersicon (Tomato) — Habit of Growth, and Stems — Roots 

 — Leaves— Inflorescence and Flowers — Pollination, Fertiliza- 

 tion, and Development of the Fruit — Parthenocarpy — Ab- 

 normal Tomatoes — The Mature Fruit — Geographical — Im- 

 portant Species and Varieties— Key to Types of Cultivated 



Tomatoes— Closely Related Forms — History — Uses 587-592 



(Capsicum annuum (Peppers) — Description — Geographical — 

 Other Species — Types — Key to Botanical Varieties of Capsi- 

 cum annuum — Composition — Uses 592-596 



Nicotiana (Tobacco) — Habit — ^Leaves — Inflorescence and 

 Flowers — Fruit — Geographical Distribution and Economic 



Importance 596-597 



Nicotiana tabacum (Tobacco) — Habit, Roots, Stems — ^Leaves 

 — Inflorescence and Flowers — Pollination and Fertilization — 

 Fruit — Geographical— Closely Related Species — Types and 

 Varieties— Composition — Curing Tobacco — The Tobacco In- 

 dustry—References 597-605 



CHAPTER XXXIX.— CucuEBiTACE^ (Gotod Family). 



Habit — Stems and Leaves — Flowers — Fruit — Germination of 



Cucurbit Seeds — Key to Principal Genera 606-610 



Cucurbita (Squash, Pumpkin, Gourd; —Stems, Leaves, 

 Flowers — Pollination and Fertilization — Mature Fruit — 



Geographical — Key to Important Species of Cururbita 610-612 



Cucurbita pepo — Description — Origin — Types and Varieties . 613 



Cucurbita maxima — Description — T3T)es and Varieties 614 



Cucurbita moschata — Description — Types 615 



Cucumis (Muskmelon, Cantaloupe, Cucumber) —Stems, 

 Leaves, Flowers — Pollination — Geographical — Key to Prin- 

 cipal Species 615-617 



