third-class mail

third-class mail Sec. 3. The rate of postage on third-class matter shall be 2 cents for the first two ounces or fraction thereof, and 1 cent for each additional ounce or fraction thereof up to and including eight ounces in weight, except that the rate of postage on books and catalogs, of twenty-four pages or more, seeds, cuttings, bulbs, roots, scions, and plants not exceeding eight ounces in weight shall be 2 cents for the first two ounces or fraction thereof and 1½ cents for each additional two ounces or fraction thereof: Provided, That upon payment of a fee of $10 for each calendar year or portion thereof and under such regulations as the Postmaster General may establish for the collection of the lawful revenue and for facilitating the handling of such matter in the mails, it shall be lawful to accept for transmission in the mails, separately addressed identical pieces of third-class matter in quantities of not less than twenty pounds, or of not less than two hundred pieces, subject to pound rates of postage applicable to the entire bulk mailed at one time: Provided further, That the rate of postage on third-class matter mailed in bulk under the foregoing provision shall be 14 cents for each pound or fraction thereof with a minimum charge per piece of 1 cent, except that in the case of books and catalogs of twenty-four pages or more, seeds, cuttings, bulbs, roots, scions, and plants the rate shall be 10 cents for each pound or fraction thereof with a minimum charge per piece of 1 cent: Provided further, That the minimum charge per piece of 1 cent specified in the foregoing proviso shall be increased to 1½ cents on July 1, 1952: Provided further, That pieces or packages of such size or form as to prevent ready facing and tying in bundles and requiring individual distributing throughout shall be subject to a minimum charge of 3 cents each: And provided further, That the rates prescribed by this section shall not apply with respect to matter mailed by religious, educational, scientific, philanthropic, agri- 65 Stat. 674 cultural, labor, veterans’, or fraternal organizations or associations, not organized for profit and none of the net income of which inures to the benefit of any private stockholder or individual, and the existing rates shall continue to apply with respect to such matter.