BASIN SPRINGS, EUREKA SPRINGS, ARKANSAS.—Arkansas is famous for her life-giving and health-supporting springs, and among these none are more celebrated than those at Eureka, in the northwestern part of the State. The location is picturesque and mountainous, the atmosphere clear and invigorating. A few years ago the place was a wilderness, and the waters wasted their treasures of good health in untrammeled mountain rivulets. By the merest accident their curative powers were discovered, and immediately the sick and the afflicted from all parts of the world began to flock thither, like pilgrims to a newly discovered Siloam. At present there is a thriving city of 4000 inhabitants located on the mountain sides, with many thousands of invalid guests constantly coming and going. ] ------------------------------------------------------------------------ [Illustration: THE LOOKOUT, ON THE ROAD TO HOMER.] From Chicago we went east over the Michigan Central to Niagara Falls, that greatest of natural wonders, a sublime apotheosis of omnipotence, a glorification of the immeasurable power that nature possesses, in whose roar we distinguish the hallelujah chorus of centuries and peans of praise to the mightiness of Deity. Niagara Falls, the supreme natural marvel of both continents, is divided into two cataracts, viz.: American Falls, flowing towards the American or western side, and Horseshoe Falls, which discharges towards the Canada side, the two being separated by Goat Island. [Illustration: BARN BLUFF, NEAR RED WING, MINNESOTA.] The height of the former is one hundred and four feet, and the latter, owing to a limestone stratum not worn away, is one foot higher, by which it is reasonably concluded that at one time nearly all the flow was towards the American side, because the discharge over the western fall is not now so great as that towards the Canada side. This tremendous flood of waters is from Lake Erie through Niagara River into Lake Ontario, and the retrogression of the cataract, caused by the wearing of the limestone ledge, inclines geologists to the opinion that the flow has continued for a period of not less than thirty-seven thousand years. The width of Niagara River at the falls is forty-five hundred feet, of which American Falls occupies eleven hundred feet, Goat Island fourteen hundred feet, and Horseshoe Falls two thousand feet, though the deep curve in the latter, whence its name is derived, makes the line of fall more than three thousand feet. It has been estimated that the discharge exceeds one billion gallons of water every twelve hours, and that the force thus developed is equal to something more than one million horse- power.