Once each week the postmaster meets his division heads and department chiefs in formal council, when the problems of the service are freely discussed and plans are formulated for such undertakings as may require unity of action and coöperative effort. These conferences keep the various heads apprised of what is of importance in the various departments, and promote an esprit de corps and coöperative attitude that explain the exceptional unity of effort that is characteristic of the entire organization. One has only to study the organization for a short time to discover that one of its strongest features is the manifest team-work, the one animating and controlling influence throughout it all being "the interest of the service." _The Delivery Division_ Closest to the heart of the public of all the postal employees--probably because they see so many of them and know so much of their faithful work as they plod along day in and day out, in all kinds of weather, with their heavy loads weighing down their shoulders and twisting their spines--are the letter-carriers. These are all under the Division of Delivery, the superintendent of which is Mr. Charles Lubin. Mr. Lubin entered the service in 1890, as a substitute clerk, and is another example of the executive who has risen, step by step, through all the various clerical grades to supervisory rank, and then through the various supervisory ranks to his present title. The Delivery Division includes in its personnel, in addition to 2954 letter-carriers, 3621 clerks, 282 laborers, and 1800 substitute employees, so that it constitutes a small army in itself. The New York post-office covers both Manhattan and the Bronx, with a postal population which greatly exceeds the population as shown by the census. To New York gravitate daily hundreds of thousands of people who are employed in Manhattan and the Bronx but who reside in Brooklyn, New Jersey, Long Island, or elsewhere. Hundreds of thousands of others reside at one address in Manhattan or the Bronx, but do business at another, receiving mail at both addresses. Including these, the transients, and the commuters mentioned, it is estimated that the Delivery Division is receiving mail for approximately 8,000,000 addressees in the boroughs of Manhattan and the Bronx. Adequately to meet the requirements of this vast number there are scheduled, for the business section of the city, six carrier deliveries daily, and four for the residential sections. Just what this means will be better appreciated if one will pause and try to visualize what it means to traverse every street and alley of the great area covered by Manhattan and the Bronx from four to six times daily, stopping at every door for which there is mail, and effecting delivery in apartments, in tenements, in office buildings, and in factories.