[By United Press.3 IWashington, D, 0., Apr. 15,— Presence of a mysterious German raider or submarine in the western Atlantic may account for the disappearance of the American colUed Cyclops, which is missing with 283 aboard.lowed in coming to port haa been made and continues, it was an*nounced.Washington, D. C., Apr. 16.—The big American naval collier Cyclops, carrying 57 passengers, lu officers, and 32i men In its crew, baa been overdue at an Atlantic port since March 13. The navy department announced that the vessel was last reported at a West Indlea island March 4, and that extreme anxiety is entertained as to its safety. The vessel was bringing a cargo of manganese from Bratll,The Cyclops left the West Indies with one of its two engines damaged, but the department said this fact would not have prevented the collier from . communicating by radio, and all efforts to reach it by that means have been unsuccessful. A thorough search of * the course which the Cyclops would have folThere have been no reports of Qerman submarines or raiders in the locality in which the collier was, the department's statement said. The weather bad not been stormy and could hardly have given the collier trouble.Alfred Gottachaik, United States consul general at Rio de Janeiro, was the only civilian among the passengers on the collier, the others being two naval lieutenants and 54 naval enlisted men returning to the United States. The Cyclops was commanded by Lieutenant commander G. W. Worley, United States naval reserve force.The fact that the collier had been missing nearly a month became known here Thursday, April 11. The naval censor requested the Associated Press not to publish the fact on the ground that the ship had not been given up for lost and that to publish the fact that it was overdue might expose the Cyclops to subma-(Continued on Page 6*)