ACKNOWLEDGMENTS 



For photographs from which several of our illustrations have 

 been made, we are indebted to Henry A. Dreer, Inc., Philadelphia, 

 Pa.; A. N. Pierson, Inc., Cromwell, Conn.; E. G. Hill Co., Richmond, 

 Ind.; Chas. H. Totty, Madison, N. J.; Department of Agriculture, 

 Bureau of Plant Industry, Washington, D. C.; Thos. Rochford & 

 Sons, Broxbourne, England; Hoopes Bro. & Thomas Co., West 

 Chester, Pa.; John A. Payne, Jersey City, N. J.; W. J. Palmer & 

 Son, Buffalo, N. Y.; Kroeschell Bros. Co., Chicago, 111. We are also 

 under obligations to the Department of Agriculture, Bureau of Plant 

 Industry, Washington, D. C., for permission to print the subject 

 "The Seedling-Inarch and Nurse-Plant Methods of Plant Propaga- 

 tion," an extract from Bulletin No. 202, and to Fred Lauten- 

 schlager of Kroeschell Bros. Co., Chicago, 111., for notes on hot water 

 heating. 



