
[1.] 
In any action for defamation it shall be lawful for the defendant (after notice in writing of his intention so to do, duly given to the plaintiff at the time of filing or delivering the plea in such action), to give in evidence, in mitigation of damages, that he made or offered an apology to the plaintiff for such defamation before the commencement of the action, or as soon afterwards as he had an opportunity of doing so, in case the action shall have been commenced before there was an opportunity of making or offering such apology.
2 
In an action for libel contained in any public newspaper or other periodical publication it shall be competent to the defendant to plead that such libel was inserted in such newspaper or other periodical publication without actual malice, and without gross negligence, and that before the commencement of the action, or at the earliest opportunity afterwards, he inserted in such newspaper or other periodical publication a full apology for the said libel, or, if the newspaper or periodical publication in which the said libel appeared should be ordinarily published at intervals exceeding one week, had offered to publish the said apology in any newspaper or periodical publication to be selected by the plaintiff in such action; . . .  and to such plea to such action it shall be competent to the plaintiff to reply generally, denying the whole of such plea.
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7 
Whensoever in Northern Ireland, upon the trial of any indictment or information for the publication of a blasphemous   libel, under the plea of not guilty, evidence shall have been given which shall establish a presumptive case of publication against the defendant by the act of any other person by his authority, it shall be competent to such defendant to prove that such publication was made without his authority, consent, or knowledge, and that the said publication did not arise from want of due care or caution on his part.
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9 
Wherever throughout this Act, in describing the plaintiff or the defendant, or the party affected or intended to be affected by the offence, words are used importing the singular number or the masculine gender only, yet they shall be understood to include several persons as well as one person, and females as well as males, unless when the nature of the provision or the context of the Act shall exclude such construction.
10 
Nothing in this Act contained shall extend to Scotland.