Note 357 — Chapter XIII
Reading edition
Writing to Huxley on the subject of the latter's work on the morphology of the Mollusca (1853), he says:—"The discovery of the type or 'idea' (in your sense, for I detest the word as used by Owen, Agassiz & Co.) of each great class, I cannot doubt, is one of the very highest ends of Natural History."—More Letters, ed. F. Darwin and A. C. Seward, 1903, i., p. 73.