At this height, the city lights lay spread in a glare of blue and yellow beneath us. The individual local planes came dropping like birds to our stage. Thirty-eight passengers to Mars for this voyage, but that accursed desire of every friend and relative to speed the departing voyager brought a hundred or more extra people to crowd our girders and add to everybody's troubles. Carter was too absorbed in his duties to stay with us long. But here in the turret Dr. Frank and I found ourselves at the moment with nothing much to do but watch. Dr. Frank was a thin, dark, rather smallish man of fifty, trim in his blue and white uniform. I knew him well: we had made several flights together. An American--I fancy of Jewish ancestry. A likable man, and a skillful doctor and surgeon. He and I had always been good friends. "Crowded," he said. "Johnson says thirty-eight. I hope they're experienced travelers. This pressure sickness is a rotten nuisance--keeps me dashing around all night assuring frightened women they're not going to die. Last voyage, coming out of the Venus atmosphere--" He plunged into a lugubrious account of his troubles with space sick voyagers. But I was in no mood to listen to him. My gaze was down on the spider incline, up which, over the bend of the ship's sleek, silvery body, the passengers and their friends were coming in little groups. The upper deck was already jammed with them. The _Planetara_, as flyers go, was not a large vessel. Cylindrical of body, forty feet maximum beam, and two hundred and seventy-five feet in length. The passenger superstructure--no more than a hundred feet long--was set amidships. A narrow deck, metallically enclosed, and with large bull's-eye windows, encircled the superstructure. Some of the cabins opened directly onto the deck. Others had doors to the interior corridors. There were half a dozen small but luxurious public rooms. The rest of the vessel was given to freight storage and the mechanism and control compartments. Forward of the passenger structure the deck level continued under the cylindrical dome roof to the bow. The forward watch tower observatory was here, officers' cabins, Captain Carter's navigating rooms and Dr. Frank's office. Similarly, under the stern dome, was the stern watch tower and a series of power compartments. Above the superstructure a confusion of spider bridges, ladders and balconies were laced like a metal network. The turret in which Dr. Frank and I now stood was perched here. Fifty feet away, like a bird's nest, Snap's instrument room stood clinging to the metal bridge. The dome roof, with the glassite windows rolled back now, rose in a mound peak to cover the highest middle portion of the vessel.