One breezy day in early June, when a fresh wind off shore was whipping the water into sparkling white caps, excitement and comment fairly hummed about the crowded foredecks of the big Dreadnought Manhattan. The formidable looking sea-fighter lay with half a dozen other smaller naval vessels-battleships and cruisers-in the stretch of water known as Hampton Roads, which, sheltered by rising ground, has, from time immemorial, formed an anchorage for our fighting-ships, and is as rich in historical associations as any strip of sea within the jurisdiction of the United States. The cause of all the turmoil, which was agitating every jackie on the vessel, was a notice which had been posted on the ship's bulletin board that morning. It was tacked up in the midst of notices of band concerts, challenges to boxing matches, lost or found articles, and the like. At first it had not attracted much attention. But soon one jackie, and then another, had scanned it till, by means of the thought-wireless, which prevails on a man-of-war, the whole fore part of the ship was now vibrant and buzzing with the intelligence. The notice which had excited so much attention read as follows: "Enlisted Men and Petty Officers: You are instructed to send your volunteer applications for positions in the experimental Aero squad. All applications to be made in writing to Lieutenant De Frees in charge of the experiment station."