Articles on The Tendency of the Criminal

-Mrs. Ariadne Oliver was extremely well known as one of the foremost writers of detective and other sensational stories. She wrote chatty, if not particularly grammatical, articles on The Tendency of the Criminal, Famous Crimes Passionnels, Murder for Love v. Murder for Gain. She was also a hotheaded feminist and when any murder of importance was occupying space in the press there was sure to be an interview with Mrs. Oliver, and it was mentioned that Mrs. Oliver had said, "Now if a woman were the head of Scotland Yard!" She was an earnest believer in woman's intuition.

The italics are given by the book. Does the sentence mean she wrote articles

1. related to the tendency of the criminal, italics being used for emphasis

or

2. for a newpaper named THE TENDENCY OF THE CRIMINAL etc?

Thank you. OJ.