"Ah?" said Mr. Tulliver, to whom one thing was as wonderful as another concerning these unfamiliar phenomena.
…the influence of a strong feeling, had a promptitude in action that may seem inconsistent with that painful sense of the complicated, puzzling nature of human affairs under which his more dispassionate deliberations were conducted; but it is really not improbable that there was a direct relation between these apparently contradictory phenomena, since I have observed that for getting a strong impression that a skein is tangled there is nothing like snatching hastily at a single thread.
…history, finding that his piece of garden-ground contained wonderful caterpillars, slugs, and insects, which, so far as he had heard, had never before attracted human observation; and he noticed remarkable coincidences between these zoological phenomena and the great events of that time,—as, for example, that before the burning of York Minster there had been mysterious serpentine marks on the leaves of the rose-trees, together with an unusual prevalence of slugs, which he had been…
There are no more uses of "phenomenon" in the book.