There are some things that seem too sacred to drag before the public. For years I said very little in my public ministry about my experience with doubt. While, as city evangelist of Greater Pittsburg, I was assisting a minister in a revival, he learned incidentally of my experience with infidelity; and as there were a number of skeptics in the community, he urged me to preach on the subject. The message seemed to do much good to the large audience that heard it. Since then it has been repeated a number of times, and the largest auditoriums have not been able to hold the people who were eager to hear it. This demonstrates that the message supplies a great need, and has encouraged me to prepare this book for the public. The Christian Temple in Baltimore was packed with people, and on account of the jam the doors were ordered closed by the policeman in charge half an hour before time for the service. At Portsmouth, Va., twenty-five hundred were crowded into a skating-rink, and many failed to get admittance. At Halifax, Can., hundreds were turned away. But this has been the experience wherever the sermon has been thoroughly advertised. To illustrate this, I quote from the Harrisonburg (Va.) papers of Jan. 9, 1911, where the sermon was delivered the night before in Assembly Hall, the largest auditorium in the city. About sixteen hundred people were jammed in the hall and many crowded out. It was the largest audience that ever assembled in that city for a religious service. "Evangelist Lutz says that on every occasion on which he has delivered his address on 'My Conversion from Infidelity,' no matter how large the hall may have been, people have turned away for lack of room. Last night's attendance at Assembly Hall maintained the record. Presumably the hall has never been more closely packed. Seats, stage, box, aisles, windows, doorways, were filled, and many found place in the flies of the theater. A number couldn't find places anywhere and went away. Mr. Lutz is a fine example of evangelist. He has a magnetic personality and a strong, oratorical way of talking, fluent in speech and filled with figurative language and the phrases of his profession."--_Harrisonburg Daily Times._ "Evangelist H. F. Lutz spoke last night at Assembly Hall on 'The Story of My Conversion from Infidelity.' The audience showed close attention and earnestness. Many were turned away because of the crowded condition of the hall. Many people from the near-town sections came to attend the service."--_Harrisonburg Daily News._ I trust that my bitter experience with rationalism, infidelity and doubt will help to reveal their true nature and thus keep many young men from these dangerous rocks, and will help to deliver many others from this terrible bondage. May the Father graciously bless my humble efforts to win souls to Christ and to help bring about Christian union on the primitive gospel in order to the Christian conquest of the whole world. Henry F. Lutz.