xviii LIST OF ILLUSTRATIONS 



FIG. PAGE 



32. Method of bridge-grafting a girdled trunk 219 



33. A transverse section of a tree showing the precautions to 



be taken when preparing a cavity for filling 222 



34. Methods of strengthening a weak crotch 225 



35. Showing method of plotting street-trees 249 



Sample pages from field book for enumerating street- 

 trees After page 275 



