_Explanation_: The first figure as indicated denotes the rural route number, the second figure denotes the box and its location on the mile, the third or more figures denotes the miles from the supplying post office. Each mile is divided into four quarters for box designation, those on the right have the odd figures 1, 3, 5, 7, and those on the left even figures 2, 4, 6, and 8. If there is more than one box in a quarter, the other boxes are given the first box number in that quarter with the addition of a small letter _a_, _b_, _c_, _d_, etc., after the mile figure or figures. The patron if he lived at the first quarter of a mile would be addressed--John Williams, Rayville, Ill., Rural Delivery 111. This would show that John Williams lives on rural route number one, at the first quarter mile on the delivery part of the route, and that it is the first box on the first mile. If he lived on the second mile at the third quarter he would be addressed Rural Delivery 152, and his box would be so numbered. If he lived on the second mile at the second quarter, and on the left-hand side of the road, his box number would be 142. Where automobile routes are established a capital letter can be used instead of the first figure. If it is desired, the section number can be used instead of the miles figure or figures, and would then show where the patron lived in the township. [Illustration] It is understood that the Department has under consideration the question of locating the boxes on the right-hand side of the road for the convenience of the carrier. The above system can be used whether all the boxes are located on the right side of the road or not. The question of entirely abandoning the practice of numbering boxes is also being considered and if adopted, this suggested method of additional identification would of course be useless. It is simply mentioned here as an idea to aid in readily assorting mail in the office and as a more complete method of identification than under the present system. If the Department decides that the name of the owner on the box is sufficient, this suggested new plan has no further value and can be regarded as one of the many novel ideas in connection with the rural service which come up from time to time. It may, however, be said that a box once located and numbered always retains its identity and no matter how many persons live at, or move to or from that locality, the box number retains its identity the same as a house retains its identity in a city. Wireless Telephones in the Rural Service