Score page 172 Realisation Note E 85 to 116. This finishes at 13:52.
From 13:52 to 15:47 we have the next part of that page st, s and k sounds, and then the swept f sound downwards and upwards made by Stockhausen himself.
From 15:47 Score page 173 F A. 1 (Licht) to 19 (Bli-)
Score page 172 Realisation Note E 37 to 84. Several versions of Frost at the beginning but then goes through the words in order corresponding with the Realisation Note.