PREFACE vii 



For example, two books by Graves, "Forest Mensuration" and 

 ''Principles of Handling Woodlands," cover mainly the three 

 subjects " Silvicultural Methods of Reproduction," "Timber 

 Estimating" and "The Growth of Trees and Forests," which are 

 here included in three chapters. 



As a textbook, then, for the post-graduate forest schools giving 

 the highest grade of instruction, this book will have a greater 

 value for its detailed discussion of New England forests in Vol. II, 

 than for the portion dealing with general forestry. But it is 

 hoped that, for the undergraduate forest schools giving a slightly 

 lower grade of instruction, all portions of the book will prove 

 useful. 



The publications of the United States Forest Service as well 

 as those issued by the Forestry Departments of the various 

 eastern states, have been freely consulted, and much of the 

 information which they contain has been incorporated in these 

 pages. 



Free use has also been made of various books dealing with 

 the subjects treated in these chapters. Among them are the 

 following: "History of the Lumber Industry in America" by 

 Defebaugh; "Studies in Forestry" by Nisbet; "Principles of 

 Handling Woodlands" and "Forest Mensuration" by Graves; 

 "A Textbook of Botany" by Strasburger, Schenck, Noll and 

 Schimper; "Handbook of Trees of the Northern States and 

 Canada" by Hough; and various articles in Forestry Quarterly 

 too numerous to mention. 



All the tables in the appendix, with the exception of certain 

 log rules and several tables taken from a "Manual for Northern 

 Woodsmen" by Prof. Austin Gary, have been secured from state 

 or federal forest service publications. In connection with each 

 table acknowledgment is made of the source from which it was 

 obtained. 



The sketches and a majority of the pictures are original 

 although a large number were secured from other sources. 

 Wherever a picture was not taken by the authors its origin is 

 stated beneath the picture. 



