A night-trip made from the city of Buffalo in its namesake on July 4, 1874, was noteworthy for the magnificent success attending the use of the drag-rope. The balloon took a south-easterly course across the State of Pennsylvania, going over the Alleghany Mountains and other ridges in the southern section of the State, being kept close to the earth most of the way. The relief of weight caused by a portion of the drag-rope lying and trailing upon the tree-tops enabled the balloon to climb the side of the mountain at about the same relative elevation. Swinging clear from the crest of the ridge, the balloon would soon settle into the valley, to repeat the same manoeuvre farther on. Sunrise met the party near the Maryland line, and after a delightful sail across a portion of that State, Delaware and Delaware Bay, a landing was made in Southern New Jersey, four hundred miles and thirteen hours from the starting-point. The Buffalo will also be remembered in connection with the ascension from the exposition-grounds during the Centennial Exhibition. The failure of the costly experiments undertaken by Mr. King for the American Aeronautic Society, at Coney Island last season, simply affords another illustration of the aeronautical axiom that "Captives are uncertain." Under the most favorable circumstances, and at inland points least exposed, on perhaps not more than a dozen days in the year will the air be sufficiently quiet to make captive ascensions practicable and pleasant, and the difficulty is of course greatly enhanced at the seacoast. The society proposes to again thoroughly test the matter this season, studying the velocity of the wind near the ocean from various altitudes.