Actually, the "Aeolus" chapter of "Ulysses" (set in the Ormond Hotel) does not appear to contain a specific allusion in so many words to "winds going free". But the theme is strongly present. The chapter contains the intelligence that (p. 274): "Pwee! A wee little wind piped eeee. In Bloom's little wee." And this develops into the culminating passage (p. 276): "Prrprr. / Must be the bur. / Fff. Oo. Rrpr. ... / ... / Pprrpffrrppff. / Done."
The "Penelope" chapter, however, has Molly, at the end of the fifth of its eight long paragraphs, thinking (p. 722-3): "... yes Ill sing Winds that blow from the south ... I feel some wind in me ... I wish hed sleep in some bed by himself with his cold feet on me give us room even to let a fart God or do the least thing better yes hold them like that a bit on my side ...". And at the start of the sixth paragraph (p. 723): "that was a relief wherever you be let your wind go free".
[References to 1958 reprint of First Unlimited Edition, Bodley Head, 1937.]
Anthony Stadlen