Part 37

Mangrove, 173. germination of, 301.

Marsupials, 82.

Mastodon, 73.

Medusa, 188, 304.

Megalosaurus, 61.

Melicerta, 210.

Miller, Hugh, opinions of, 15.

Millepore, 183.

Moa, 84.

Moho, 84.

Moon, cyclicism of, 359.

Mosasaurus, 65.

Moth, eggs of, 314.

Mountains, upheaving of, 66, 70.

Murex, 233, 365.

Nails, growth of, 277.

Nature, circularity of, 113. plan of, 345, 369.

Nautilus, 235.

Navel, evidence from, 289, 334.

Nerita, axis of, 365.

Noah's flood, 6.

Oestridae, economy of, 309.

Oolitic system, 58, 60; duration of, 63.

Opossum, 63.

Organ-pipe, 185.

Organic life a circle, 113, 122.

Organisms, earliest, 40.

Orchis, 152.