PREFACE 



tion, Vine's " Students' Text-Book of Botany," "' The Check 

 List of the Forest Trees of the United States," and the mag- 

 azine Garden and Forest. 



The extracts from the works of Lowell, Longfellow, 

 Emerson, Whittier, Holmes, Thoreau, Burroughs, and Miss 

 Thomas are used with the permission of and by special ar- 

 rangement with the publishers Messrs. Houghton, Mifflin 

 & Co., those from Wilson Flagg with the permission of the 

 Educational Publishing Co., that from Bryant with the per- 

 mission of the publishers, Messrs. D. Appleton & Co. 



The quotations from the works of Professor G. Frederick 

 Wright, Professor George Pierce, and Professor D. T. Mac- 

 Dougal are made by the kind consent of the authors. Es- 

 pecial acknowledgment is due to Professor Charles S. Sar- 

 gent not only because in the preparation of this volume the 

 Silva of North America has been the authority which has 

 decided every case of doubt and because of his kind per- 

 mission to quote from his writings, but also because of his 

 kindly interest and his invaluable assistance in obtaining 

 specimens for illustrations from the Arnold Arboretum. To 

 Miss Anna J. Wright, Miss Charlotte Bushnell and Mr. 

 Charles F. Pack especial thanks are due for valuable notes 

 and suggestions ; also to the Director of the Missouri Bo- 

 tanical Garden for specimens kindly sent upon request. 



The outline pictures are the work of Miss Mary Keffer of 

 Cleveland, Ohio. The photographs for the illustrations 

 were taken partly by Mr. Alfred Redher, of the Arnold Ar- 

 boretum, partly by Mr. Charles H. Coit, of Glenville, Ohio, 

 but principally by Decker, Edmonson & Co. of Cleveland, 

 Ohio. 



May 20, 1900. 



viii 



