16 14 4 10 + ao NUMBER IN CLASS ST-02-d 12 + 2.5 12.5 22.5 32.5 425 52.5 625 CLASS CENTERS, PERCENT FIGURE B-20-11 BRUSH ESTIMATES BY IMP OPERATOR ON FIRST SURVEY OF BELLE
16 14 4 10 + ao NUMBER IN CLASS ST-02-d 12 + 2.5 12.5 22.5 32.5 425 52.5 625 CLASS CENTERS, PERCENT FIGURE B-20-11 BRUSH ESTIMATES BY IMP OPERATOR ON FIRST SURVEY OF BELLE