Denver, Feb. 16. - The special train from Chicago over the Chicago, Burlington and Quincy and the Burlington and Missouri railroads, chartered by Henry J. Mayham. a Denver mining investment broker reached this city at 3:52 a. m. Tuesday, having run 1.026 miles in 18 hours and 52 minutes. This journey goes into history as the great■st railroad feat ever accomplished. The best previous railroad long distance record was 19 hours and 57 minutes for 964 miles over the New York Central and Lake Shoré railroads, from New York to Chicago. Mr. Mayham. who left New York Sunday on the Pennsylvania limited, chartered a special train at Chicago in order to reach the bedside of his dying son, William B. Mayham, as quickly as possible. The Burlington officials agreed to take him to Denver in twenty-four hours. If was at first thought the trip might be made in twenty-one hours. Every resource of the Burlington system was brought into play and over two hours was clipped off from the best running time that was thought possible. On straight stretches of track the train covered more than 60 miles an hour. The mountain climb from Aki'on, Col., to Denver, 118 miles, was made in 124 minutes, the train running an even mile a minute much of the distance. In spite of the fast time, however, Mr. Mayham's son died a few hours before he arrived in Denver. Will Mayham, the son, was 21 years of age and was married but a few months ago. Ijast Friday morning he appeared in the best of health, but later in the day he became ill and appendicitis in the most violent form Quickly developed. The decedent was one of the most promising young business men in Denver.