The principal movement of mails is from the east to the west, from the great commercial centers to the less densely populated districts. This ebb and flow is natural in ordinary times, but is greatly increased both in volume and quantity when the immensely stimulated holiday trade changes conditions in all directions and calls for the exercise of administrative ability in meeting extraordinary demands and supplying suddenly developed needs. These conditions are met by a system of distribution devised to meet just such needs, whereby congestion is relieved at one point and pressing demands accommodated at another, the various mail bag depositories under capable management rendering such necessary aid. The whole supply of bags has been handled as much as ten times in one year through these depositories without which the peculiar conditions of the service could not be met. Mountain carriers in the northwest require special pouches especially in the sections where snow shoes are needed. The carriers in Alaska with their dog-teams have also special makes of pouches and thus all conditions are met where peculiar needs require it. Post Office Supplies In June, 1872, Congress authorized the establishment of a blank agency for the purpose of supplying the smaller post offices with blanks and stationery. The appropriation was $132,500. In 1883 the scope of this enactment was enlarged and the Department undertook the tremendous task of supplying all the post offices of the country with stationery and all the office equipment and appliances needed in the conduct of public business. The amount of a recent appropriation for the purpose was about two and a half million dollars. From this blank agency has grown the Division of Supplies, which furnishes all supplies needed except mail bags, locks and keys, which come under the equipment branch, of which this division is a part. Supplies are sent to postmasters upon requisitions made out upon blank forms furnished for the purpose. These requisitions are carefully revised by clerks and allowances made conformably to practice and customs. Money order and postal note requisitions are also handled in this division. Supplies are required in enormous quantities for public use. In twine alone the required amount for 1916 was 2,000,000 pounds, or 680,000 miles of it. Ink 15,000 gallons. Facing slips more than a billion; pencils, pens, blanks, envelopes and paper in staggering amounts. The utmost economy is practiced in sending out these immense supplies that waste may be prevented and the money appropriated used to the best advantage. The capable management of the Superintendent and those in charge of the Division of Equipment and Supplies, has produced gratifying results in all directions and rendered service which has been recognized and appreciated. Special Delivery