21 



Sample Plot No. 1 {Government Plot No. 4) — Concluded. 



AveiEige height, 1905, 50 feet. 

 Average height, 1914, 55 feet. 



Summary of Data, 

 Total board feet to acre, 1905, 

 Total board feet to acre, 1914, 

 Total gain in board feet per acre, 

 Current annual gain in board feet per acre, 



29,212 



37,716 



8,504 



945 



Sample Plot No. 2 {Government Plot No. 5). 



Area, H acre; age, forty-three years. 



