86 



Nature-Study Agriculture 



PREVENT A SPLIT OR 

 MEND A SPLIT BY CHAIN 

 & BOLTS, NOT BY A BAND, 

 SEE I. 



A DECAYED BRANCH 

 AS C, CUT OFF & 

 THE CAVITY CLEANED 

 ft FILLED. 



STUB 

 TOO LONG 

 FOR HEAL- 

 THY 



HEALING 

 AND DECAY 

 WORKS 



INWARD. 



A LONG STUB LEFT, 

 DECAY HAS SET IN 

 ft IFNOT, TREATED 

 AS AT M WILL 

 DESTROY THE MAIN 

 LIMB. 



A PRUNING 

 WOUND MADE 



HEALING 

 fECTLY. 



A SOLID BAR WITH 

 NUTS WILL HOLD A 

 WEAKENED CROTCH 

 THOUGH, IN A BIG TREE 

 NOT SO WELL AS A 

 CHAIN. SEE A. . 



WHEN A LIMB IS 

 REMOVED AND THERE 

 IS SLIGHT DECAY, CLEAN 

 OUT THE WOUND & TAR 

 BUT DO NOT FILL IT. 



BAND. THE TREE 



CHOKED. SEEA&Dl 



TREAT A BRUISE AS 

 H BY CUTTING OUT 

 INJURED TISSUE, 

 LEAVING -SURFACE ft 

 EDGES SMOOTH. TAR 

 BUT DO NOT TILL. 



OR BRUISE TO BE 



A. LARGE CAVITY 

 PROPERLY FILLED 

 WITH CONCRETE. 



FIG. 67. Methods of tree surgery. 



j. W. Gregg 



