Here rare flowers bloomed every day in the year, the temperature being uniform; the immense and lofty roof being made to slide in panels, by electricity, thus allowing the natural temperature of the outside air to prevail, when sufficiently high not to be detrimental to the plants. At night the grandeur of the scene was superb when lighted by the electric lamps. After an hour for their toilet and lunch, Cobb and Hugh passed out and around the eastern part of the city bordering the lake, and here Cobb observed the wonderful growth and curious innovations over his time. Like New York, the city was a double one, over its central portion, appropriate descents being situated at short intervals for passing from the upper to the lower streets. The great avenues, such as Michigan, Wabash, State, First, Fifth, and Seventh, were provided with rapid-transit trains, in tunnels crossing the river below its surface, and running south to Five Hundred and Tenth street. Electric surface roads were used for cross-transportation, and were similar to those which he had already seen. The city was divided into four great divisions; or, as they were styled, zenods. Each zenod had its own post-office, court house, police, city prison, and all the machinery necessary in the operation of a complete city. The zenods were governed by a lieutenant-mayor and a council of fifteen members; the city, as a whole, was governed by a mayor and a supreme council of thirty-nine members. Cobb ascertained from Hugh that it had been found utterly impossible to properly provide for the welfare and advancement of such a great population unless the work was divided, and to that end the four zenods, with their respective municipal corporations, with a supreme head and upper house, had been created. For three days Cobb and Hugh passed about the great city, the one observing and the other explaining the many wonderful things to be seen. Chicago was indeed a remarkable city, not only in its vast population, quadruple government, extent of territory and unprecedented increase, but in the application of every known adjunct to man's welfare, comfort, and benefit. Leaving "The Wonderful City" and its vast progress for a future and thorough investigation, the two friends took the 23 dial pneumatic for Niagara. CHAPTER XVII It was 2 dial the next morning, when Cobb and Hugh reached Niagara. The night was beautiful, but the weather cold, and it was with pleasure that the two men reached the hotel, and ensconced themselves by the side of a real coal fire, as Cobb called it. The stillness of the night was a source of surprise to Cobb, as he heard not that thundering, deafening roar of the mighty cataract which had always heretofore greeted him upon his arrival at the falls.