Part 32

Belemnites, 58.

Bignonia, 168.

Birds, earliest, 69. gigantic, 82. feathers of, 253.

Blackwood, opinions of, 9.

Blocks, transport of, 78.

Blood, 275, 285.

Bones, structure of, 279.

Botryllus, metamorphoses of, 222.

Brachionus, eggs of, 321.

Bracts, development of, 166.

Brown, Rev. J. M., opinions of, 9.

Bulbs, growth of, 153, 156.

Buprestis, 214.

Butterflies, eggs of, 307.

Butterfly-flower, 150.

Cabbage-palm, 144.

Carboniferous deposits, 44.

Case-flies, 209.

Cassowary, 252.

Caverns, bone, 76, 88.

Ceiba, 174.

Cephalaspis, 44.

Chalk formation, 64.

Chalmers, Dr., opinions of, 19.

Chronology of globe, 30, 339.

Circularity of organic life, 113, 336, 351.

Clavagella, 225.

Coal, age of, 50. extent of, 46. origin of, 47.