On the 14th of March, commanded by Captain Clark, she sailed from San Francisco, entering the straits of Magellan on the 17th of April. On the same day that Admiral Dewey reached the Philippines, the _Oregon_ arrived at Rio de Janeiro, Brazil. Every American was full of anxiety for the great battleship. Surely Admiral Cervera would arrive in the West Indian waters before the _Oregon_ could pass through them. But swiftly and steadily the great ship came on. Finally, on the 24th of May, the _Oregon_ sighted the harbor lights of Key West, and soon reached a safe port. The very next day, Captain Clark reported her ready for duty. She had steamed the length of two oceans and not a valve was broken nor a repair needed. Much praise is due to Captain Clark for bringing his vessel such a distance in desperate haste in order to help fight the nation's battles. But we must not forget that it was the chief engineer, Robert W. Milligen, and his seventy men, who made this possible. In spite of the terrible heat in the engine rooms, these brave fellows worked untiringly to keep the great ship moving steadily day and night around the continent. [Illustration: MAP OF HARBOR OF SANTIAGO DE CUBA.] Meanwhile, on the 11th of May, an unfortunate affair had occurred in the harbor of Cardenas, on the northern coast of Cuba. Three of the American vessels blockading this harbor had been ordered to explore the bay. Suddenly the Spanish batteries on the shore opened fire. The torpedo boat _Winslow_, being nearest the shore, received most of the enemy's shells. Although bravely returning the fire, the little boat was soon disabled. Five men were wounded, and Ensign Worth Bagley and four other men were killed. These were the first Americans to lose their lives in this war. On the following day, the Americans heard that the Spanish fleet had arrived at Martinique, a small French Island near the coast of Venezuela. This being known, Commodore Schley sailed from Hampton Roads for the West Indies. On the 19th of May, Admiral Cervera sailed into the harbor of Santiago de Cuba, on the southern coast of Cuba, and was there several days before the Americans found it out. Commodore Schley hastened at once to the mouth of the harbor so as to cut off all hope of escape for the Spanish admiral. Admiral Sampson soon arrived with the main squadron, and the entire fleet kept watch, frequently bombarding the forts at the harbor's mouth. The Americans did not attempt to pass into the harbor, as the entrance was strongly protected by torpedoes; so they waited for a land force to arrive, and attack the enemy from the rear. VII.--LIEUTENANT HOBSON AND THE MERRIMAC. Soon after Admiral Sampson arrived off Santiago, there came to him a young lieutenant, Richmond Pearson Hobson. He had a plan which he wished to propose. He said: