Final answer:
The sound device being utilized in the excerpt from Whitman's poem is onomatopoeia.
Step-by-step explanation:
The sound device being utilized in the excerpt from Whitman's poem is onomatopoeia. Onomatopoeia is the use of words that imitate or suggest the sound they describe. In this excerpt, the use of the word 'bells' imitates the actual sound of bells ringing, creating a sense of auditory imagery for the reader.
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