LIST OF ILLUSTRATIONS XIU 



Fig. Page 



97 Radishes Bunched for Market 418 



98 A Field of Rhubarb 430 



99 Boston Marrow Squash 437 



100 Some of the Commercial Types of Sweet Potatoes 436 



loi Frame for Growing Sweet Potato Plants 441 



I03 Cross-Section of Pipe-Heated Frame 443 



103 Sweet Potato Sets or Drawings 446 



104 Plows for Harvesting Sweet Potatoes 447 



105 Harvesting Thyme 449 



106 Pot-Grown Tomato Plant 456 



107 Tomatoes Packed for Market 464 



108-H0 Student Gardens at the Pennsylvania State College 499, 501, 5c j 



