Hellas, [81], [90], [91];

in winter, [58], [59];

ruddy color of, [148].

Herschel, Sir W., [34], [37].

Hibernation of canals, [313-324], [379].

Hiddekel, embouchure of, [232];

connection with Luci Ismenii, [260-262].

Hippalus, identical with rift, [326], [327].

Hoarfrost, [78], [79], [81];

at equator, [79];