INTRODUCTION iii 



ters with any readers who will be so good as to 

 give him the benefit of their ideas and their ex- 

 perience in the field of tree repair. 



Some readers, to whom this book is an intro- 

 duction to the work it describes, may at times feel 

 that its directions are too general, and its state- 

 ments too often qualified. A brief practical ex- 

 perience will show them the necessity for a certain 

 degree of generality. No two trees are alike. In 

 order that directions may not be misleading, they 

 must often leave much to the judgment of the 

 operator. 



To increase the working value of the book, the 

 writer has in several instances followed the com- 

 mon-sense European custom of stating the names 

 of manufacturers and their products. He is sure 

 that no one will accuse him of log-rolling who has 

 tried to acquaint himself with the materials used 

 in a line of work which is so young and scattered 

 that it is not yet represented by a trade-journal. 

 He makes no pretense of having discovered or 

 mentioned every valuable product. 



During the preparation of the book the writer 

 has received valuable help from many people. 

 Mr. M. H. Horvath of Cleveland, landscape 

 architect and consulting forester, and Mr. John 

 Boddy, city forester of Cleveland, have answered 

 many enquiries, and Mr. Boddy has furnished the 

 originals of several photographic illustrations. 



