8 BULLETIN 1186, U. S. DEPARTMENT OF AGRICULTURE. 
1911 an English writer said that the blister rust caused much damage 
to young trees, and it was not valuable enough to plant as a forest 
tree except on a small scale (17, p. 173). Similarly, Baltz in Ger- 
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Fig. 1.—A 55-year-old white-pine plantation in the French Vosges, yielding 42,900 board 
feet per acre. Note the clean straight trunks of the trees. Such a crop is profitable, 
and there are many stands similar to this in the white-pine regions of northeastern 
America. 
many suggested caution in planting white pine on a large scale (4). 
Henceforth, owing to the destructive power of the blister rust, white 
pine will be planted commercially less and less in Europe. 
