Book,  Paragraph

 1   v,  21|         are called by some the "mothers", from an idea that they
 2  VI,  2 | purposes some birds make better mothers than others. If it thunders
 3  VI,  18|      the litters improve as the mothers grow in age and size. It
 4  VI,  22|         assert that thereby the mothers have all the easier delivery.
 5 VII,  1 |         and in women who become mothers of many children; for it
 6 VII,  4 |         eight months old, their mothers do not bring into the world
 7 VII,  4 |     ivy-sickness"; and with the mothers of female infants the longings
 8 VII,  4 |         but when they die their mothers are in great danger of their
 9  IX,  41|   varied characteristics of the mothers and the workers. For in
10  IX,  41|         leaders, who are called mothers, and the other of workers.
11  IX,  41|      The leaders, the so-called mothers, are seen all through the
12  IX,  41|  produced working-wasps but not mothers. When these are grown up,
13  IX,  41|        longer working-wasps but mothers. These develop high up in
14  IX,  41|       large ones. The so-called mothers are caught at the change
15  IX,  45|       comes for parturition the mothers give birth to their young