Missing right side "k"

[mculbert]

I think right side "k" (-BG) is missing from the chapter on hidden sounds. It's used in the "find outlines" exercise number 2 of the section on "left side D, B, and L" ("Will you pick the raft and the deck?") as well as number 1 of section "both sides CH and TH" ("You crawl and crouch before you walk."), and probably elsewhere.