on Aristotle's categories, [210], [211] n.;
on substance and accident, [209] n., [223] n., [231] n., [232] n., [234] n., [241] n., [243] n., [248];
on essence as nature, [258-61];
on subsistence and personality, [263] n., [266] n., [269];
on quality, [283], [290], [293];
on habits, [294-6];
on power and substance, [300] sqq.;
on grades in quality, [307-8];
on quantity and corporeal substance, [311] sqq.;
on body and spirit, [314-6];