To an idler desirous of seeing wild life on easy terms Chattanooga offers this advantage, that electric cars take him quickly out of the city in different directions, and drop him in the woods. In this way, on an afternoon too sultry for extended travel on foot, I visited a wooded hillside on the further bank of the Tennessee, a few miles above the town. The car was still turning street corner after street corner, making its zigzag course toward the bridge, when I noticed a rustic old gentleman at my side looking intently at the floor. Apparently he suspected something amiss. He was unused to the ways of electricity, I thought,--a verdancy by no means inexcusable. But as he leaned farther forward, and looked and listened with more and more absorption, the matter--not his ignorance, but his simple-hearted betrayal of it--began to seem amusing. For myself, to be sure, I knew nothing about electricity, but I had wit enough to sit still and let the car run; a degree of sophistication which passes pretty well as a substitute for wisdom in a world where men are distinguished from children not so much by more knowledge as by less curiosity. In the present instance, however, as the event proved, the dunce's cap belonged on the other head. My countryman's stare was less verdant than his next neighbor's smile; for in a few minutes the conductor was taking up a trap door at our feet, to get at the works, some part of which had fallen out of gear, though they were still running. Twice the car was stopped for a better examination into the difficulty, and at last a new wedge, or something else, was inserted, and we proceeded on our way, while the motorman who had done the job busied himself with removing from his coat, as best he could, the oil with which it had become besmeared in the course of the operation. It was rather hard, he thought, to have to spoil his clothes in repair-shop work of that kind, especially as he was paid nothing for it, and had to find himself. As for my rustic-looking seatmate, he was an old hand at the business, it appeared, and his practiced ear had detected a jar in the machinery.