Hunter, John, experiments in Anabiosis, [25].

Hyalineae, length of life of, [56].

Hybrids, [330].

Hydroids, origin of germ-cells of, [199], [206], [207], [211].

Hyla, [301], [394].

Hymenoptera, length of life of, [49].

Hypermetropia, [89].

Ichneumons, length of larval life of, [15];

length of life of imago of, [49].

Ichthyophthirius multifiliis, fission of, [148], [149].