Tangut prenasalization, pre-initial consonants, and rhyme book rhyme categories

Continuing from my last post on Tangut, Gong Xun (2022) re-interprets Gong Hwang-cherng's long vowels ("column 2 rhymes") in the "major cycle" as a nasal pre-initial. Evidently, the reason that GHC reconstructs long vowels for these rhymes is the fact that rhymes of the same "column" are used in Sanskrit transcriptions to transcribe Sanskrit long …