INDIVIDUALS OF THE 400 LINE
MALES FEMALES
First generation No. 152, Left whirler No. 151, Left whirler
Second generation No. 410, Left whirler No. 415, Right whirler
Third generation No. 420, Left whirler No. 425, Left whirler
One line of descent exhibited no pronounced whirling tendency; the other exhibited a strong tendency to whirl to the left. Are these statements true for the group of one hundred individuals whose distribution among the three classes of whirlers has been given? In order to obtain an answer to this question I have reclassified these individuals according to descent and direction of whirling.
INDIVIDUALS OF THE 200 LINE
RIGHT WHIRLERS LEFT WHIRLERS MIXED WHIRLERS TOTAL
Males 7 6 8 21 Females 5 8 8 21 12 14 16 42