Bui. 1497, U. S. Dept. of Agriculture 
Plate 6 
u 
""X 
$ 
A— A northern white pine planted in 1915 at Trout Lake, Wis., which grew 41 inches in height in 
1923. A Norway pine planted at the same time stands at the right 
B.— A 21-year-old private plantation in northern Michigan. The Norway pine is 22 feet high, the 
northern white pine 12 feet, and Norway spruce 9 feet 
