PREFACE 



The author is glad to acknowledge her indebtedness 

 to the following books of reference : Britton and 

 Brown's "Illustrated Flora of the United States and 

 Canada," Bailey's " Cyclopedia of American Horticul- 

 ture," Emerson's Report on the Trees and Shrubs of 

 Massachusetts, Gray's " Manual of Botany," Britton's 

 " Manual of the Flora of the Northern States and 

 Canada," Bailey's " Evolution of Our Native Fruits," 

 Card's " Bush Fruits," and the magazine Garden and 

 Forest. 



The extracts from the works of Lowell, Emerson, 

 Whittier, Torrey, Thoreau, and Higginson are used 

 with the permission of the publishers, Messrs. Hough- 

 ton, Mifflin & Co. ; that from Fred W. Card, with the 

 permission of the Macmillan Co. ; that from Joseph 

 Y. Bergen, with the permission of Ginn & Co. 



The quotations from the writings of Professor L. H. 

 Bailey, Mr. J. G. Jack and Mr. Jackson Dawson are 

 made by the kind consent of the authors. 



Especial acknowledgment is due to Professor Charles 

 S. Sargent, who so generously placed the magnificent 

 resources of the Arnold Arboretum at the service of 

 the author ; and also to Mr. Alfred Rehder, whose ex- 

 pert knowledge has been invaluable in deciding every 

 case of doubt. 



The full page illustrations are from photographs, 

 many of which were made by Mr. Alfred Rehder of 

 the Arnold Arboretum, the remainder by Decker & 

 Co., and by the Edmondson Studio Co., both of Cleve- 

 land, Ohio. 



The outline pictures are the work of Miss Mary 

 Keffer of Lake Erie College, Painesville, Ohio. 



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