Acarina, pycnogonids, Permian ticks?

[John R. Grehan]

>
>Kirk
>
>"I find that my mind is so fixed by the inductive
>method that I cannot appreciate deductive reasoning:
>I must begin with a good body of facts and not from
>principle (in which I always suspect some fallacy)
>and then as much deduction as you please."
>
>C. Darwin, 1874

There may be some irony here as Croizat argued Darwin's biogeography
was indeed based on a general principle (centers of origin/means of dispersal)
rather than being generated from the body of facts (of distribution).

John Grehan