The “Scientific American” says that there are killed annually in the coal mines of this country three times as many men per thousand as there are in the coal mines of most European countries. In seventeen years 22,840 men have lost their lives, 11,000 of these in the last six years. In the year 1906, 4,800 were injured and 4,800 killed. The death-rate is decreasing in Europe, while increasing here.