It was this, if I remember right: Jonah was swallowed by the whale in the Mediterranean Sea, and after three days he was vomited up somewhere within three days’ journey of Nineveh, a city on the Tigris, very much more than three days’ journey across from the nearest point of the Mediterranean coast.
But not to speak of the passage through the whole length of the Mediterranean, and another passage up the Persian Gulf and Red Sea, such a supposition would involve the complete circumnavigation of all Africa in three days, not to speak of the Tigris waters, near the site of Nineveh, being too shallow for any whale to swim in.
There are no more uses of "The Tigris" in the book.
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One of our guys jumped into the Tigris!
Marcus Luttrell -- Lone Survivor
It is a mixture of excellent opium, which I fetched myself from Canton in order to have it pure, and the best hashish which grows in the East—that is, between the Tigris and the Euphrates.