52 



BULLETIN 275_, U. S. DEPARTMENT OF AGRICULTURE. 



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 — Continued. 



No. 



Age. 



Infection traced to — 



Wounds. 



Open. 



In- 

 ternal 

 (healed 

 over). 



Typical rot. 



Confined 

 to neigh- 

 borhood 



of 

 wounds. 



Extend- 

 ing much 

 beyond 

 wounds. 



Remarks. 



155 



43 



156 



61a 



61b 



4 



106 



5 



92 



25 



114 



157 



151 

 85 

 9 

 13 

 31 



117 

 83 

 91 

 12 

 93 



160 

 81 



3 

 51 



24 



82 



8 



57 



67 



64a 



64b 



52 



77 



71 



95 



39 



14 



142 



73a 



73b 



59 



141 



140 

 141 

 143 

 143 

 146 

 146 

 148 

 149 

 150 

 150 



150 

 151 

 152 

 152 

 155 

 155 

 155 

 156 

 156 

 160 

 160 

 161 

 163 



164 

 165 

 165 

 166 

 169 

 170 

 170 

 170 

 175 

 175 

 178 

 180 

 183 

 185 

 191 



192 

 200 

 200 



221 

 221 

 232 



258 



Fire 



do 



do 



Frost crack 



Falling tree 



Fire 



Lightning and frost. 



Frostcrack 



Fire 



Frostcrack 



Fire 



do 



(?) 



Frostcrack. 



do 



Fire 



do 



Lightning.. 

 Frostcrack. 



Fire 



do 



do 



Frostcrack. 

 Fire 



Knots 



Fire 



do 



(?) 



Knot 



Fire 



Frostcrack. 



Knot 



Fire 



Lightning . . 



do 



Fire 



Lightning.. 



Fire 



do 



Frostcrack. 



do 



Fire 



Frostcrack 



Lightning 



do 



Fire with frost crack. 



(?) 



(?) 



(?) 



(?) 



(?) 



(?) 



(?) 



(?) 



(?) 



(?) 



Condition very poor; sup- 

 pression xxx. 



Frost. 



Advance rot. 

 Notes incomplete. 

 Advance rot. 

 Frost. 



Frost. 



Butt open from fire 73 years 

 ago; suppression xxx. 



Frost. 



Frost. 



Suppression xxx. 

 Frost. 



Condition very poor; sup- 

 pression x. 

 Knots. 



Notes incomplete. 

 Knot. 



Frost. 

 Knot. 

 Suppression xxx. 



Advance rot. 



Suppression xx. 

 Dominance xxx; fire 110 



years ago; deep burn. 

 Frost. 



Condition very poor; sup- 

 pression xxx. 

 Frost. 



Advance rot. 



Table IV is designed to show whether and in which cases typical 

 rot extends much beyond the wounds forming the entrance for the 

 fungus. Column 7 is the one to be followed ("Typical rot, extending 

 much beyond wounds")- The affirmative is expressed by a cross, x ; 

 the negative by a dash, — . Cases which are on the line between the 

 two are marked by a cross in parentheses; they are negligible for 

 our purposes. The first tree to be considered, No. 58, is 123 years 

 old and has a frost crack. From this age, or rather after 126 to 130 



