vi Preface. 



as our own, so far as they are in use among us and appli- 

 cable to the wants of American horticulture, there will 

 still be left large possibilities for the future. New varie- 

 ties are springing up and new forms appearing every year, 

 both b)^ natural processes and through the skilful work of 

 the hybridizers and gardeners, who are ever on the look- 

 out for new things in this line. These processes will go 

 on in the future as they have in the past, and it may well 

 be believed that the possibilities are limitless in this 

 direction. 



Acknowledgments are due to Messrs. Elwanger & Barry 

 of Rochester, N. Y. ; The Gardening Company, and the 

 publishers of Park and Cemetery of Chicago ; E. L. Beard 

 of Boston, and W. C. Egan of Highland Park, for several 

 valuable plates and photographs used in illustrating this 



volume. 



L. D. D. 



Newport, R. I., 

 February, 1899. 



