_The Postal Deficit._--For many years the postal service was operated at a loss, the principal causes of the deficit being due to the loss sustained by the government on the transportation of second-class matter and through the rural free delivery service. During the fiscal year 1917 the loss on the former account aggregated $72,000,000 and on the latter about half that amount. There is also a heavy loss on mail carried free under the Congressional frank. Thus in 1917 more than 60,000,000 pounds of such mail was carried, the postage on which would have cost more than $20,000,000. Nevertheless by rigorous economy the deficit was made to disappear in 1911 for the first time in thirty years. In 1917 there was a surplus of more than $9,000,000. =Mail Matter.=--Congress has power to decide what matter shall be admitted to the mails and what shall be excluded. In addition to books and printed matter generally it allows parcels of merchandise weighing not more than seventy pounds to be carried through the mails; also seeds, bulbs, roots, samples of flour, dried fruits, cut flowers, geological and botanical specimens, soap, nuts, live queen bees, dried insects, etc. On the other hand, the following matter is denied admission to the mails: parcels weighing over seventy pounds; poisons, explosives, live animals, liquors and other objects unsuitable for transportation in the mails; obscene matter and articles adapted or designed for immoral purposes; all matter relating to lotteries and schemes for swindling the public, and, by acts of 1917, advertisements of intoxicating liquor intended for distribution in prohibition states and printed matter advocating treason, insurrection, resistance to the laws, disloyalty, etc. _"Fraud Orders."_--The mails are so frequently used by dishonest concerns for circulating advertising matter designed to defraud the public, that a law has been passed authorizing the postmaster-general to withhold the privileges of the postal service from persons using it for such purposes. In pursuance of this authority, he frequently issues "fraud orders," instructing the local postmaster not to deliver mail to specified fraudulent concerns. It was reported in 1913 that in two years such concerns had swindled the people out of $129,000,000. _Classification of Mail Matter._--Mail is classified into four different classes: _first_, letters and postal cards; _second_, newspapers and other periodical publications; _third_, printed matter not admitted to the second class; and _fourth_, merchandise not comprehended in the other three classes.