Edison's train left Port Huron at seven o'clock in the morning and arrived at Detroit in about three hours. It did not leave Detroit again until quite late in the afternoon, arriving at Port Huron about nine-thirty at night. This made a long day for the boy, but it gave him an opportunity to do just what he wanted, which was to read, to buy chemicals and apparatus, and to indulge in his favorite occupation--chemical experimentation. The train was made up of three coaches--baggage, smoking, and ordinary passenger. The baggage-car was divided into three compartments--one for trunks and packages, one for the mail, and one for smoking. As there was no ventilation in this smoking-compartment, no use was made of it. It was therefore turned over to young Edison, who not only kept his papers there and his stock of goods as a "candy butcher," but he also transferred to it the contents of the precious laboratory from his mother's cellar. He found plenty of leisure on the two daily runs of the train to follow up his study of chemistry. His earnings on the train were excellent, for he often took in eight or ten dollars a day. One dollar a day always went to his mother, and, as he was thus supporting himself, he felt entitled to spend any other profit left over on chemicals and apparatus. Detroit being a large city, he could obtain a greater variety there than in his own small town. He spent a great deal of time in reading up on his favorite subject at the public library, where he could find plenty of technical books. Thus he gave up most of his time and all his money to chemistry. He did not confine himself entirely to chemistry in his reading at the Detroit public library, but sought to gain knowledge on other subjects. It is a matter of record that in the beginning of his reading he started in with a certain section of the library and tried to read it through, shelf by shelf, regardless of subject. Edison went along in this manner for quite a long time. When the Civil War broke out he noticed that there was a much greater demand for newspapers. He became ambitious to publish a local journal of his own. So his little laboratory in the smoking-compartment received some additions which made it also a newspaper office. He picked up a second-hand printing-press in Detroit and bought some type. With his mechanical ability, it was not a difficult matter to learn the rudiments of the printing art, and as some of the type was kept on the train he could set it up in moments of leisure. Thus he became the compositor, pressman, editor, proprietor, publisher, and newsdealer of the _Weekly Herald_. The price was three cents a copy, or eight cents a month for regular subscribers and the circulation ran up to over four hundred copies an issue. Only one or two copies of this journal are now to be found.