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Ch on Geology

22

General difficulty as shown by Pal.

First objection made by everyone not intermediate. Time - subsidence good for extinctions & reverse. Species a term for an entity. A priori intermediates might have been expected.

Breaks between formations no difficulty - close species is following formation

Silurian not first life - continents changing - the oldest continent ought to be dying.

Species come in slowly & die out not by cataclysms. Doctrine of Extinction.

All fossils & recent one system, explained by descent - Intermedial characters of old fossils. (a) (a)

Higher & lower Embryonic progress from general to special.

Lastly

Geographical – geological - distribution.

Space & time analogous - groups, as well as species come in strongly — group dies out less quickly than they come in:

(aa)

Difficulty (Falconer) from order of species not coming in with affinity