It is proposed to venture the following reasons as conducive to much of this change in weather conditions of the country at large. First, the general denuding of our forests, which evidently has much influence on the water courses. Next, the settling up of the whole country, and location of cities and towns from ocean to ocean, all quite evenly distributed, and in a great portion of them large amounts of machinery, composed of iron and steel, producing a great amount of friction and electrical influence in their workings; besides the almost innumerable fires from furnaces, factories and households, discharging their heat into the upper air. Again, the railroad system, with its millions of tons of steel rails, make a magnetic connection between every State and almost every county in forming one grand combination. The rush of thousands of trains all over the country, with their friction by wheels on the tracks, and the rush through the atmosphere, cannot fail to influence in largely equalizing the same. Still another potent influence must exist in the almost unlimited number of wires for telephone and telegraph purposes, which make all the electrical combinations more complete than anything else. If all these things combine, it does not seem strange that magnetic and electric currents and conditions of our weather throughout the country should be somewhat modified. IX. SPRINGS. The person in full enjoyment of health rarely ever appreciates it to the fullness that he will on being deprived of it and have its welcome return. The bounties of Nature are so great and common that they fail to attract our attention to the extent of some trifles that come new into our way from day to day. One of the greatest provisions of Nature, as universal as air and Earth, is the millions of springs gushing up through the pores of the Earth in every country and clime. To make this provision of fresh water ample, needs very large reservoirs for supplies. The amplitude of this reservoir, if the situation is as claimed in this book, it is believed everybody will admit. To prove that this supply comes from such a general source a class of witnesses must be brought out. One of the most important must be the feeding of our great lakes on high altitudes. These great bodies of fresh water are universally credited with enormous depths of pure, clear water, such as never could exist as the result of shed water. Many of them practically have no streams feeding them, but, without regard to weather conditions of seasons, pour forth enormous bodies of water without change of volume. Lake Superior will be taken again as a prominent witness. Here is an inland sea, on the highest ground between the ocean and Rocky Mountains, so large that vessels can sail on it for days out of sight of land. Not a river of any importance flows into it, the country around it not admitting the formation of a large stream.