In the first place, the express companies require for their operations much the same kind of equipment as is required by the Post Office Department. Express cars and railway postal cars; horse-drawn express delivery wagons and horse-drawn post office delivery wagons; motor express trucks and motor post office trucks; express company horses and Post Office Department horses--all do similar work, along similar routes, in similar sections of similar cities at similar times of the day and under similar conditions. The economies possible by consolidation are lessened only slightly by the fact that on the main railroad trunk routes express traffic is often carried by trains composed entirely of express cars, in which there can obviously be little saving by consolidation of the express system and the parcel-post. In passing, it should be noted that the railway mail cars are furnished by the railroads, and in most cases the trucks and wagons and automobiles used in transporting mail through a city render that service by contracts of the Post Office Department with their owners; so that the savings in consolidation would accrue indirectly by lower contract rates rather than directly. Especially in smaller communities and in the thinly settled outskirts of larger communities can one wagon or one motor truck often render the service now requiring one express wagon or motor truck and one post office wagon or motor truck. On less crowded routes and on less crowded trips, one railroad car can often render the service now requiring an express car and a railway post office car. And on the crowded routes and in the thickly-populated cities, if one vehicle of transportation cannot render the service now requiring two, at least in many cases four such vehicles can render the service now requiring five. (Note 3.) CONSOLIDATION OF AGENCIES