I THINK you must now have learned a great deal about the history of your country from the time Columbus crossed the ocean till the year 1800, the beginning of the Nineteenth century. You have been told about discovery, and settlement, and wars, and modes of life, and government, and other things, but you must bear in mind that these are not the whole of history. The story of our country is broad and deep enough to hold many other things beside these. For instance, there is the story of our great inventors, to whom we owe so much. I propose in this chapter to tell you about some of those who lived near the year 1800. First, I must ask you to go back with me to a kitchen in Scotland many years ago. On the open hearth of that kitchen a bright fire blazed, and near by sat a thoughtful-faced boy, with his eyes fixed on the tea-kettle which was boiling away over the fire, while its lid kept lifting to let the steam escape. His mother, who was bustling about, no doubt thought him idle, and may have scolded him a little. But he was far from idle; he was busy at work--not with his hands, but with his brain. The brain, you know, may be hard at work while the body is doing nothing. How many of you have seen the lid of a kettle of boiling water keeping up its clatter as the steam lifts it and puffs out into the air? And what thought has this brought into your mind? Into the mind of little James Watt, the Scotch boy, it brought one great thought, that of power. As he looked at it, he said to himself that the steam which comes from boiling water must have a great deal of force, if a little of it could keep the kettle lid clattering up and down; and he asked himself if such a power could not be put to some good use. Our Scotch boy was not the first one to have that thought. Others had thought the same thing, and steam had been used to move a poor sort of engine. But what James Watt did when he grew up, was to invent a much better engine than had ever been made before. It was a great day for us all when that engine was invented. Before that time men had done most of the work of the world with their hands, and you may imagine that the work went on very slowly. Since that time most of the world's work has been done with the aid of the steam-engine, and one man can do as much as many men could do in the past. You have seen the wheels rolling and heard the machines rattling and the hammers clanging in our great factories and workshops. And I fancy most of you know that back of all these is the fire under the boilers and the steam in the engine, the mighty magician which sets all these wheels and machines at work and changes raw material into so many things of use and beauty.