Complex sentence: In his allegorical poems reminiscences of Chaucre's style and literary habit are frequent, but his wilder humour and greater heat of blood give him opportunities in which the Chaucerian tradition is not helpful, or even possible.
Split into simpler sentences: In his allegorical poems reminiscences of the master's style and literary habit are most frequent. His wilder humour and greater heat of blood give him opportunities in which the Chaucerian tradition is not helpful, or even possible.