SECTION 1. Section nineteen hundred and forty-six of the Administrative Code is amended so as to read as follows:
"SEC. 1946. Conditions for admission of publications to second class.—The conditions upon which a publication shall be admitted to the second class are as follows:
"(a) It must be issued at stated intervals, as frequently as four times a year, and bear a date of issue, and be numbered consecutively.
"(b) It must be issued from a known office of publication.
"(c) It must be formed of printed paper sheets, without board, cloth, leather, or other substantial binding, such as distinguish printed books for preservation from periodical publications.
"(d) It must be originated and published for the dissemination, of information of a public character, or devoted to literature, the sciences, arts, or some special industry, and have legitimate list of subscribers.
"(e) It must be sent by the publisher thereof, and from the office of publication, or from the office in which it is printed in the case of government publications, or from a news agency to actual subscribers thereto, or to other news agents.
"Nothing in this section contained shall be so construed as to admit the second-class rate regular publications designed primarily for advertising purposes, or for free circulation, or for circulation at nominal rates.
"Periodical publications issued by or under the auspices of the Government of the Commonwealth of the Philippines, or any of its different branches and subdivisions, for the purpose of furthering the objects of the Commonwealth, may be admitted to the mails as second-class matter, except when such publications contain any commercial advertising matter.
"Publishers of matter of the second class may, without subjecting it to extra postage, fold within any regular issue a supplement; but in all cases the added matter must be germane to the publication which it supplements, that is to say, matter supplied in order to complete that to which it is added or supplements, but omitted from the regular issue for want of space, time, or greater convenience, and such supplement must in every case be issued with the publication, and bear the title and date of the publication which it supplements and its pages be numbered consecutively."