THE LOADSTONE, OR MAGNET. 71 of steel. All you have to do is to rub a bar of steel thoroughly on the load- stone. ‘The bar is then said to be mag- netized. It becomes a magnet. After that, if you want to make another mag- net, you have only to touch another piece of steel to the bar which has been rubbed on the loadstone, and that, too, becomes magnetized. Some years ago, when I was in the American Museum, in the city of New York, I saw a very large loadstone. It was so large and powerful, that when- a piece of iron, weighing a pound or two, was made to touch it, I found it was hard work to. 5