51.   Short wings, more pointed than other owls, combine with long tail to give hawk-like silhouette.

52.   Sleeping pills can interfere with the effect of other medications and can be dangerous when combined with them.

53.   Small children need firmness combined with loving care.

54.   Still less can they accept impartial public broadcasting combined with a biased press and biased satellite television.

55.   That, combined with anonymity no matter how great your genius, would seem like a formula for disaster.

56.   The film of steam combined with the patina of dirt on the glass made them almost opaque.

57.   The following case shows how a penalty such as time-out can be combined with positive reinforcement of pro-social behaviour.

58.   The fore-edge painting could, of course, be combined with a vellum or Etruscan calf binding.