FOREST PATHOLOGY IN FOREST REGULATION. 



51 



age (152 years). The increment was good. We can not, therefore, 

 make EcMnodontium tinctorium responsible for the decrease in 

 thrif tiness of infected white fir. 



In order to further fix the relation between the character of the 

 opening through which the fungus gains entrance into the wood and 

 the character and extent of the decay, all cull cases were tabulated 

 separately (Table IV). 



Table IV. — Cull cases of white fir, showing the extent of typical rot and its relation to 

 the wound through which the infection took place. 



Age. 



Infection traced to— 



Wounds. 



Open. 



In- 

 ternal 

 (healed 

 over). 



Typical rot. 



Confined 

 to neigh- 

 borhood 



of 

 wounds. 



Extend- 

 ing much 

 beyond 

 wounds. 



Remarks. 



102 

 103 

 104 

 104 

 104 



105 

 106 

 106 



107 

 107 

 107 

 110 

 110 



111 



112 

 112 

 112 

 113 

 116 

 116 

 119 

 119 

 123 

 123 

 123 

 124 

 124 

 124 

 125 

 126 

 129 

 130 

 130 

 131 

 132 

 133 

 134 

 135 

 135 

 136 

 136 

 137 

 140 

 140 

 140 



Lightning 



Fire 



Fire with lightning. 



Frost crack 



Lightning with fire. 



Fire 



....do 



....do 



Lightning 



Fire 



....do 



Lightning 



do 



Girdling 



(?) 



x 



X 

 X 



(T) 



X 



X 



(?) 



X 



X 



X 

 X 



X 

 X 

 X 

 X 

 X 

 X 

 X 

 X 

 X 

 X 

 X 



(?) 



X 

 X 

 X 

 X 

 X 



(x) 



Negligible 



Negligible. 

 Advance rot. 



Advance rot. 

 Remained open 22 years. 



Almost completely f irdled 82 

 years ago; open 31 years. 



Negligible. 



Frost. 



Frost. 



Advance rot. 



Frost. 

 Do. 



Frost. 

 Do. 



Knots. 

 Frost. 



Do. 

 Knots(?). 

 Much advance rot. 

 Sporophore. 



