A GENERAL VIEW __---.~--~----------- 
CONTENTS 
CHAPTER I 
Vegetable forcing—The history of vegetable forcing 
—Prominent sections—Importance of vegetable forcing 
—Types of vegetable forcing—Organization—Southern 
competition—The superior quality of greenhouse vege- 
tables—Economic production—Capital required—Profits 
—Location—Climatic influences—Relative importance of 
forcing crops—The outlook. 
CHAPTER II 
GREENHOUSE CONSTRUCTION AND HEATING __..--------------- 
SoILs 
Manures, Lime AND FERTILIZERS 
Greenhouses vs. frames—Site and position of house— 
Grading — Size and proportions—Materials—Arrange- 
ment of houses—Forms of greenhouses—Wood con- 
struction—Semi-iron construction—Iron construction— 
Truss construction—Walls—Frame—Wall plate or sill 
—The eaves or side plates—Sash-bars—Roof—Venti- 
lators—Posts, purlins and braces—Doors—Glass—Glaz- 
ing — Shading — Painting — Beds and benches —Walks, 
alleys and roadways—Steam vs. hot water heating— 
Radiation required—Systems of hot water heating— 
Systems of steam heating — Location of pipes—The 
boiler—Thermostats. 
CHAPTER III 
Selection—Greenhouse soils abnormal—Texture—Struc- 
ture—Color—Organic content—Water content—Chemi- 
cal composition—Depth—Drainage—Muck soil—Boston 
soils—Chester fine sandy loam—Ashtabula soils—Cleve- 
land soils—Toledo soils—Lansdale silt loam—Norfolk 
series—Irondequoit soils—Soil adaptation. 
CHAPTER IV 
Need of plant food—Value of manures—Rhode Island 
IX 
Pages 
13 
47 
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