Note 3 — PART 1. ON SOUND.
Reading edition
The further subdivision into upper and lower tones needs no mark, being indicated uniformly by the initial letter. Thus, b, g, d, z, l, m, n, r, and any letters italicized are in the lower tones; other initial letters denote upper tones. There are a few exceptions which will be noted afterwards. A final italic letter denotes a nasal.