It might be worth while however, to look into some of those immense factories; from which rise innumerable huge chimnies, some of which overtop the steeples and towers of the churches, and reach far up into the heavens.[124] Thousands and thousands of spindles and power looms, with thousands and thousands of human hands and heads are moving there from morn to night, and from night to morn. What masses of complicated and beautiful machinery! What prodigious steam-engines, great hearts of power in the centres of little worlds, giving life energy and motion to the whole. Here is a single warehouse, as it is called, for the sale of manufactured goods, containing no less than two hundred clerks. What piles of silks and shawls, cottons and calicoes! The productions of Glasgow reach every part of the world. You will find them in India, China, and the United States, in the wilds of Africa and the jungles of Burmah, amid the snows of Labrador, and the savannahs of Georgia. [Footnote 124: One of these chimnies is said to be over 400 feet high.] But let us go down to the Broomielaw, and take a look at the river Clyde. That mile of masts, and those immense steamers, plying up and down the river, connect Glasgow with every part of the British Empire and the world. What grand agency has accomplished all this? Steam!--steam, under the guidance and control of genius and enterprise. The extended prosperity of Glasgow commenced with the inventions of Watt, the greatest mechanical genius of the age, and the first man that constructed a steam-engine of much practical use. Steam has raised all those huge factories which we have been admiring, and keeps their innumerable wheels and pistons, spindles and power looms in motion. Steam it is which brings untold masses of coal and iron from the bowels of the earth, and converts them into machinery and motive power. Yonder it comes, rolling and dashing, in a long train of cars and carriages filled with the produce and population of the land. Here it gives life and energy to a cotton mill with a thousand looms! There it casts off, from day to day, the myriads of printed sheets which spread intelligence through the country. All around us it moves the cranks and pullies, ropes and wires, wheels and tools, which work such wonders in beating and grinding, cutting and carving, polishing and dyeing. Steam has added thousands, nay millions to the annual income of Glasgow. It has augmented the resources of Great Britain to such an extent that it saves seventy millions of dollars annually in the matter of motive power alone! No pen can describe the additions which it has made in other parts of the world to their manufactures and commerce. It has brought all nations into more intimate relations, and is yet destined, in many respects, to revolutionize the world.