108. Quidquid igitur intra urbem admittitur ad. P. U.
videtur pertinere; sed et siquid intra centesimum
milliarium. Ulpian in Pandect. 1. i. tit. xii. n. 1. He
proceeds to enumerate the various offices of the praefect,
who, in the code of Justinian (1. i. tit. xxxix. leg. 3), is
declared to precede and command all city magistrates sine
injuria ac detrimento honoris alieni.