I copied the passage, and sent it to Owen.

Why I gave in some detail references to my own work is that Owen (not the first occasion with respect to myself and others) quietly ignores my having ever generalised on the subject, and makes a great fuss on more than one occasion at having discovered the law of succession.

In fact, this law, with the Galapagos distribution, first turned my mind on the origin of species.

My own references are [to the "Naturalist's Voyage"]: Large 8vo, Murray, Edition 1839 Edition 1845 Page 210 Page 173 On succession.
Page 153 Pages 131-32 On splitting up of old geographical provinces.
Long before Owen published I had in MS.

worked out the succession of types in the Old World (as I remember telling Sedgwick, who of course disbelieved it).
Since receiving your last letter on Hooker, I have read his introduction as far as page xxiv (87/4.