Part 23

Antholithes, 64.

Anthracite, 36.

Apocynaceæ, fossil, 92.

Araucaria, 5, 6, 7, 85, 90.

Araucarioxylon, structure of, 63.

Araucarites, 82, 83, 84, 85, 86, 87.

Arctic fossil flora (Miocene), 97.

Arctic Regions, Palæozoic flora of, 40.

Arctic Regions, fossil wood of, 95.

Arthropitys, 72.

Artisia, 64.

Asplenium, 28.

Asterophyllites, 35, 61, 71.

Bambusium, 92.

Bauhinia, 90, 92.

Beania, 82.

Bear Island, fossil flora of, 40, 59.

Beeches, 97.

Bennettiteæ, 86.

Bennettites, 85, 87.

Betula, 94, 97.

Bothrodendron, 57.

Bovey Tracey flora, 96.

Bovey Tracey, Devonshire, lignite beds of, 96.

Brachyphyllum, 80, 86, 87.

Bryson's instrument for slitting, 14.

Bucklandia, 84, 86.

Cæsalpinia, 90.