PUBLIC LAWS-CH. 645-JUNE 25, 1948 Ante, pp. 712, 714, 736, 737, 743, 744 , 745, 747, 753, 771; poet, p . 811. the mails or other property, whether or not sealed as first-class matter, are nonmailable matter and shall not be conveyed in the mails or delivered from any post office or station thereof, nor by any letter carrier. The Postmaster General may permit the transmission in the mails, under such rules and regulations as he shall prescribe as to prepara- tion and packing, of any such articles which are not outwardly or of their own force dangerous or injurious to life, health, or property. The transmission in the mails of poisonous drugs and medicines may be limited by the Postmaster General to shipments of such articles from the manufacturer thereof or dealer therein to licensed physicians, surgeons, dentists, pharmacists, druggists, cosmetologists, barbers, and veterinarians, under such rules and regulations as he shall prescribe. All spirituous, vinous, malted, fermented, or other intoxicating liquors of any kind are nonmailable and shall not be deposited in or carried through the mails. Whoever knowingly deposits for mailing or delivery, or knowingly causes to be delivered by mail, according to the direction thereon, or at any place at which it is directed to be delivered by the person to whom it is addressed, anything declared nonmailable by this section, unless in accordance with the rules and regulations authorized to be prescribed by the Postmaster General, shall be fined not more than $1,000 or imprisoned not more than two years, or both. Whoever knowingly deposits for mailing or delivery, or knowingly causes to be delivered by mail, according to the direction thereon or at any place to which it is directed to be delivered by the person to whom it is addressed, anything declared nonmailable by this section, whether or not transmitted in accordance with the rules and regula- tions authorized to be prescribed by the Postmaster General, with intent to kill or injure another, or injure the mails or other property, shall be fined not more than $10,000 or imprisoned not more than ten years, or both. § 1717. LFrTERS AND WRITINGS AS NONMAILABLE; OPENING LETTERS (a) Every letter, writing, circular, postal card, picture, print, engraving, photograph, newspaper, pamphlet, book, or other publica- tion, matter or thing, in violation of sections 499, 506, 793, 794, 915, 954, 956, 957, 960, 964, 1017, 1542, 1543, 1544 or 2388 of this title or which contains any matter advocating or urging treason, insurrec- tion, or forcible resistance to any law of the United States is non- mailable and shall not be conveyed in the mails or delivered from any post office or by any letter carrier. (b) Whoever uses or attempts to use the mails or Postal Service of the United States for the transmission of any matter declared by this section to be nonmailable, shall be fined not more than $5,000 or imprisoned not more than ten years or both. (c) No person other than a duly authorized employee of the Dead Letter Office, or other person upon a search warrant authorized by law, shall open any letter not addressed to himself. § 1718. LIBELOUS MATIER ON WRAPPERS OR ENVELOPES All matter otherwise mailable by law, upon the envelope or outside cover or wrapper of which, or any postal card upon which is written or printed or otherwise impressed or apparent any delineation, epithet, term, or language of libelous, scurrilous, defamatory, or threatening character, or calculated by the terms or manner or style of display and obviously intended to reflect injuriously upon the character or conduct of another, is nonmailable matter, and shall not be conveyed in the mails nor delivered from any post office nor by any letter carrier, and shall be withdrawn from the mails under such regulations as the Postmaster General shall prescribe. 782 [62 STAT.
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