The lines: "In mist or cloud, on mast or shroud / Whiles all the night through fog-smoke white," there are examples of internal rhyme.

There are two examples of internal rhyme.

Explanation:

Let's write it out and bold and/or italic the rhyming words:

In mist or cloud, on mast or shroud

Whiles all the night through fog-smoke white

Cloud rhymes with shroud and night rhymes with white.

Hope this helps! :D

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