22 of Mendelssohn,--9-8 measure, adagio tempo; the phrases are "Small"; note particularly the last two measures.

The same is true in No.17.

About Schumann, op.

68, No.

43 (_Sylvesterlied_), there may be some doubt; but the measures, though of common denomination, contain so many tones, in moderate tempo, that the effect of a cadence is fairly complete in the second measure.
If, on the other hand, one of the regular cadences is omitted,--owing to the rapidity of the tempo, or a small denomination of measure,--the phrase will attain just double the ordinary length; that is, _eight_ measures.