Which poetic device is evident in this passage from William blakes London every cry of man infants fear voice ban the mid-forgd manacles I hear?

The poetic device evident in the passage from William Blake's "London" is alliteration.

Here's why:

* Alliteration is the repetition of consonant sounds at the beginning of words or stressed syllables.

* In the passage, the repetition of the "m" sound in "man," "mid-forgd," and "manacles" creates a strong sense of rhythm and emphasizes the oppressive atmosphere of the poem.

The line "every cry of man, / Infants fear, voice, ban" also uses alliteration, with the repetition of the "f" sound in "fear" and "voice." This further emphasizes the suffering and helplessness experienced by the people of London.