used by ancient veterinarians.60 Little wonder the story circulated that Cadbury earned his doctorate by depriving St. Luke of his! In the second part of his dissertation Cadbury investigated Luke’s use of sources. Assuming the priority of Mark, Cadbury believed Luke’s method of using sources can be derived from the way he used Mark. In regard to the arrangement of material, Cadbury concluded that Luke largely follows Mark. Luke tends to shorten Mark’s dialogue and avoid his repetition. Cadbury believed