14 BULLETIN 1186, U. S. DEPARTMENT OF AGRICULTURE. 
lig. 5.—Interior of a 24-year-old white-pine plantation at Almindingen, island of Born- 
holm, Denmark, showing the destruction caused by the blister rust, which has killed 
32 per cent of the trees. The rest are dying from the disease. 
ing, in that it showed a decrease in the amount of infection with the 
increase of the distance from Ribes to pine. Within 200 feet of the 
Rtibes bushes (18 black currants, 3 red currants, and 7 gooseberries) 
95 per cent of the trees were diseased (fig. 7). Farther away, at 570 
Exterior view of the plantation shown in Figure 5. Even the trees showing 
the best height growth are badly diseased. 
MiG,” G: 
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