During all this time Christy was very busy with his glass.

As Mr.Baskirk had discovered, the leading steamer had three blockaders in chase of her.
She was now headed to the south, having done so as soon as she saw the four vessels lying in her course.
"Make the course south-west by south, Mr.Baskirk," said the young commander, after he had brought his trigonometry into use again.
Then it became a very exciting question to ascertain which was the faster steamer of the two..