CONTENTS Xlll 



Training Pollinating Ventilation Insect enemies 

 Diseases Yields and size of fruit. 



CHAPTER XX 



MISCELLANEOUS VEGETABLES 356 



Bean Beet Carrot Chinese cabbage Cress Celery 

 Dandelion Eggplant Kohl-rabi Mints Mustard 

 Onion Parsley Pea Pepper Sea kale Spinach 

 Swiss chard Turnip Witloof chicory. 



CHAPTER XXI 

 SYSTEMS OF CROPPING 379 



Necessity of intensive methods Selection of crops 

 Single cropping Succession cropping Succession crop- 

 ping plans Companion cropping. 



CHAPTER XXII 

 FRAME CROPS 387 



Frames vs. greenhouses Importance of frame forcing 

 Location of frames Construction of frames Cloth - 

 . covered frames Sash-covered frames Mats and shut- 

 ters Heating frames Fertilizing Watering Ventila- 

 tion Control of pests Vegetables grown in frames : 

 Asparagus Bean Beet Carrot Cauliflower 

 Celery Chinese cabbage Corn salad Cress Cu- 

 cumber Dandelion Eggplant Kohl-rabi Lettuce 

 Muskmelon Mustard Onion Parsley Pepper 

 Radish Rhubarb Spinach Swiss chard Turnips 

 Witloof chicory. 



CHAPTER XXIII 

 MUSHROOMS 407 



Importance Botanical characteristics Where to grow 

 mushrooms Material for beds Preparation of beds 

 Spawn Spawning the beds Casing the beds Tempera- 

 ture Light Insect enemies Diseases Picking and 

 marketing Yields and prices Food value Value of 

 manure from mushroom beds. 



