fission of, [64]; encystment of, [117].
Insects, duration of life amongst, [15];
duration of larval life of, [15];
normal death of, [22];
duration of imaginal life of, [38];
segmentation of egg of, [73];
deposition of eggs, [93];
origin of germ-cells of, [202];
polar bodies of, [218].
Instinct, [83];