vi CONTENTS 



CHAPTER PAQB 



XX. Plant Enemies and Insecticides . . 208 



XXI. The Value of a Definite Color 

 Scheme in the Gabden; a White, a 

 Red, a Yellow and a Blue Gabden, 

 with Table of Plants .... 215 



XXII. Bird Houses, Natatoriums and Feed- 

 ing Stations 226 



Table of Germination of Seeds . . 242 



Index 245 



