116 THE TREE DOCTOR 



these three causes the trouble might spring from, the result pro- 

 duced on the tree is much the same. In every case the "hair 

 roots," (that is, the real "feeders,"') are first destroyed, resulting 

 in the death of the larger ones. The supply of "raw material" 

 being cut off, of course the "factories" (the leaves) close, and be- 

 come a habitation of the disease germs constantly floating in 

 the air. Then the twigs give out and decay runs back into 



Photo 102 

 Trunk of Rathbone Elm, Marietta, Ohio. 



the larger branches and, finally, the once beautiful top of a 

 grand tree, while really but in youth, falls a victim to disease, 

 death and decay. Never apply a remedy until you have ascer- 

 tained the cause of the malady. 



Photo 102 shows the huge trunk of the great "Rathbone 

 Elm," at Marietta, O. Think of the wonderful, silent forces 

 that have been at work to construct this great body for two cen- 

 turies or more! Every spring as the Reclbirds, Orioles and other 

 songsters have poured forth their thrilling music from its top, 



