the strong forts that protected the entrance. To bottle him up more effectively, the Americans tried to block up the harbor entrance by sinking an old iron steamboat, the Merrimac, in the channel. This heroic work was undertaken by Lieutenant Hobson with a crew of seven daring men, but the plan failed, for the Merrimac, instead of sinking where intended, swung to one side of the main channel.
When it was reported to him that the Americans had taken the heights of El Caney and San Juan and were strongly intrenched in their positions. Admiral Cervera concluded that Santiago Bay might soon become too hot to hold him. The capture of the city would be followed by the taking of the forts at the harbor entrance, and then there would be nothing left for him to do but to surrender.
San Juan and El Caney had been taken on Friday, and all day Saturday occurred the shooting at long range, as already described. In the meantime the war-ships outside of the harbor kept up a close watch on the harbor entrance, lying well out during the day, but coming in closer at night,
