It is the unexpected that happens. No one experiences so many surprises, or has more pet beliefs upset than that oracle of the chimney-corner, the oldest inhabitant. It was long believed that tornadoes never passed over an old Indian camp ground. Whatever the popular opinion of savage intellect, there is marvelous confidence in his instinct. Again, it was thought a tornado never would pass over a large city. The storm in question demolished both these “olde wyves’ tales.” During March 27th, 1890, the Signal Service Department observed a threatening storm center gather in the southwestern portion of Wyoming, and start eastward with great rapidity. Notice was promptly given. Railway, telegraph and electric light officials were warned that on Thursday night a hurricane would blow with a speed of at least fifty miles an hour. Signal Service predictions had sometimes failed, and this last one excited no particular concern. The destroyer came and was gone in two minutes; and blocks on blocks of Louisville were a ghastly ruin. The tornado was accompanied by a cloud and tremendous rain. To an observer at the Falls, the cloud was seen to come up the gap between the hills which guard the banks of the beautiful Ohio. He described it as “balloon-shaped, twisting an attenuated tail to the earth. It emitted a constant fusillade of lightning, and seemed to be composed of a lurid, snake-like mass of electric currents, whose light would sometimes be extinguished for a few moments, making an almost intolerable darkness. It was accompanied by a fearful roar, like that of a thousand trains crossing the big bridge at once. It could be seen to strike Louisville, and then with incredible rapidity it leaped the river, churning it into white foam as it went toward the Indiana shore.” The streets of Louisville parallel to the river are named; those at right angles are numbered from east to west. The section visited may be described as a rectangle a mile square, bounded on the west by Eighteenth street, on the east by Seventh, on the south by Broadway, and on the north by the Ohio river. It comprehends the business portion of the city. Through this district the cyclone swept diagonally from southwest to northeast, crossing the river and leaving the city at the foot of Seventh street. The business houses or residences of perhaps 10,000 people lay in its path. Two days after the storm, when there had been time for a calm survey, its track is thus described by a correspondent of the Associated Press: