>.[-] occurs twice, as sometimes happens with the th we are considering?
No, but I find two other instances in which like contiguous symbols do appear twice in one word; the.<.[-] in No.

3 and the.V.)C in No.

4--a discovery the most embarrassing of all, since in both cases the symbols which begin the word are reversed at its end, as witness:.V.)C - - - )C .V -- .<.[-] - - -.[-].<.

For, if.V )C stands for th, and the whole word showed in letters th- - -ht, which to any eye suggests the word thought, what does.<.[-] stand for, concerning which the same conditions are observable?
I could not answer.

I had run on a snag.
Rules which applied to one part of the cipher failed in another.