The roads or highways, by land or sea, designated by law as the avenues over which the malls shall be transport-ed. Railway Mall Service Cases, 13 Ct. Cl. 204. A “post route,” on the other hand, is the appointed course or prescribed line of transportatlou of the mail. U. 8. v. Koch-ersperger, 26 Fed. Cas. 803; Blackbam v. Gresham (C. C.) 16 Fed. 611
Source: Black’s Law Dictionary 2nd Ed (1910)
