PREFACE Vii 



sufficient, but if a complete discussion is needed various more 

 technical works restricted to a single subject should be consulted. 

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

 " Principles of Handling Woodlands," cover mainly the three 

 subjects " Silvicultural Systems," " 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, than 

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

 that, for numerous 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 relating 

 to New England topics, as well as those issued by the Forestry 

 Departments of the different New England States, have been 

 freely consulted, and much of the information which they con- 

 tain 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: " EQstory 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, Noli 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 with 

 the authors, although a large number were secured from other 



