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- While in various silent ways the seamen of the Pequod were evincing their observance of this ominous incident at the first mere mention of the White Whale's name to another ship, Ahab for a moment paused; it almost seemed as though he would have lowered a boat to board the stranger, had not the threatening wind forbade.Chapters 52-54 -- The Albatross; The Gam; The Town-Ho's Story (3% in)
There are no more uses of "observance" in Moby Dick.
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