Hebrews, conception of the universe, [9].
Hedin, Sven, cited, [221].
Heilprin, A., cited, [148].
Heim, A., cited, [54].
Heligoland, [236].
Helland, A., cited, [99].
Hematite, [452].
Hemicycles, of glaciation, [263], [264].
Herculaneum, buried beneath mud flows, [139].