“a theme”
“on the other perhaps hand to save” (MS II)—Presumably, Ruskin means either “perhaps on the other hand to save” or “on the other hand perhaps to save”. The former option seems more likely if Ruskin inserted “on the other” above the line here at the same time that he inserted “in any case” two lines above. As a reconstruction of the composition, one might imagine him composing so far as “perhaps”, pausing to insert “in any case” and “on the other” above their respective lines, and continuing the idiom with “hand” following “perhaps” on the baseline, as the manuscript shows.