By the roadside near a mountain hamlet of Central Sweden stands a pyramid of iron cast from ore dug from the adjacent mines and set upon a base of granite quarried from the hills which overlook the valley. This monument bears the information that two brothers, Nils Ericsson and John Ericsson, were born in a miner's hut at that place, respectively, January 31, 1802, and July 31, 1803. Nils Ericsson was a man of unusual distinction, who held high position in Sweden as engineer of the canals and railroads of the kingdom. The name of his brother is known the world over. These two notable Swedes were sons of Olof Ericsson, a Swedish miner. Poverty was one of the bits of good fortune that fell to the lot of the two boys, and among John's earliest recollections is that of the seizure of their household effects by the sheriff. The mother was a woman of intelligence and somewhat acquainted with the literature of her time. In boyhood John Ericsson worked in the iron mines of Central Sweden. Machinery was his first love and his last. Before he was eleven years old, during the winter of 1813, he had produced a miniature saw-mill of ingenious construction, and had planned a pumping-engine designed to keep the mines free from water. The frame of the saw-mill was of wood; the saw-blade was made from a watch-spring and was moved by a crank made from a broken tin spoon. A file, borrowed from a neighboring blacksmith, a gimlet, and a jack-knife were the only tools used in this work. His pumping-engine was a more ambitious affair, to be operated by a wind-mill. [Illustration: John Ericsson's Birthplace and Monument.]