s a tunnel-shaped cavity in the blue sand of the earth,
about ten feet deep.

"Now keep still a moment," said Mr. Benedict.

We listened, and the roaring of the spring was easily heard when the
voices of the party did not drown it.

"Isn't it beautiful!" exclaimed Miss Margie, as she bent over and gazed
into the spring, the waters of which, for six feet down, were as clear
as crystal. "Aren't those sand clouds pretty?"

As the water boiled up from the bottom of the spring, it carried the
sand up in clearly-curved clouds until their own gravity caused the
particles to sink, and again be thrown up by the force of the water.
The party watched this phenomenon with interest for some time, for not
one of them had ever seen anything like it, with the exception of Mr.
Cornwood.

"Now, I want to show you something still more remarkable," continued
the proprietor, as he produced two long, narrow strips of board. "You
have heard the roaring of the spring, and now I want to convince you
that it is magnetic."

He placed the ends of the strips at the bottom of the spring, and then
disposed of each of the other ends on the sides of Colonel Shepard's
head. The same experiment was then tried upon Mr. Tiffany, and all the
other members of the party. The roaring seemed to penetrate, and pass
through one's head. Owen declared that the process had cured him of a
headache he had had all day; but Mr. Tiffany, while he was much
interested in the phenomenon, was somewhat skeptical in regard to the
magnetic properties of the spring.

We resumed our seats on the Orange Park carriage, and rode to Doctor's
Lake. It was said to be a dozen miles long, and from one to three miles
wide. We were told there were plenty of fish in this lake, and we were
disposed to verify the truth of the assertion. We returned to the
hotel, delighted with our drive, and Mrs. Shepard declared that she
should like to live at Orange Park. Before we left, the Colonel had
bargained for two lots on the St. Johns, and to have them covered with
orange-trees. We started for the end of the pier where the steamer lay,
for the shallow water did not permit a near approach to the land.

As we approached the Sylvania, we heard a scream from a woman on board.
I was not a little startled by the sound, and Washburn and I broke into
a run. On the quarter-deck we found Griffin Leeds and Chloe. Her
husband had seized her by the arm, and was dragging her towards the
gangway. Already