Every effort was promptly and vigorously made to defend exposed points with forts and torpedoes. Events proved that it was needless. No ship of that Spanish fleet came within five hundred miles of any American city. Yet it was evident that Cervera's fleet must be captured or destroyed before our coast could be safe, or military operations could be prudently begun in Cuba. Extraordinary efforts were made to ascertain the exact location of the hostile squadron. Finally it was found that it had slipped on May 19 into the bay of Santiago. Our fleet at once gathered around to blockade the entrance, to make it impossible for any vessel to pass in, and to attack Cervera's ships should they attempt to come out. Among our blockaders were the splendid ships New York, Massachusetts, Brooklyn, Texas, Iowa, Indiana, and the Oregon that had sailed around Cape Horn from San Francisco, fourteen thousand miles in sixty-seven days. [Illustration: RESCUE OF HOBSON BY THE SPANISH ADMIRAL.] =357. Hobson's Brilliant Exploit.=--Admiral Sampson did not deem it advisable to steam in and attack Cervera, as the channel was thickly planted with mines. So our semicircle of ships watched and waited. At night our strong search-lights blazed into the mouth of the harbor and lighted it with a fiery glare. If the narrow neck of the harbor could only be somehow obstructed, so that Cervera's ships would either be completely "bottled up," or would have to creep out to sea by daylight, the naval power of Spain would be crippled. So thought Admiral Sampson, and he selected Lieutenant Hobson for this daring deed. It meant going right into the midst of the enemy's batteries and torpedoes. A large steamer, the Merrimac, was taken and loaded down with coal; and a crew of seven men were selected to go with Hobson. Strange fascination of mingled courage and patriotism! Hundreds of sailors begged the chance to go! It was all carefully planned; and about two hours before dawn, on June 3, they started. As they drew near, the Spanish made the water boil and hiss with their shots. But on they went to the chosen spot, balls and shells striking all about, howling and shrieking in their ears and tearing their ship.