"Why couldn't I go, too?" demurely asked my operative. "I am sure I should enjoy it very much; that is, if there is no danger connected with it."

"Oh, there is no danger, whatever, and there will, doubtless, be a number of ladies present, and you can go if you wish to."

"I should most certainly wish to," laughingly answered Mrs. Baker.

"Very well," said the Captain; "if you and Mrs. Atwater will be ready by nine o'clock, we will have ample time to reach the place, which is some few miles below the city."

The ladies were both much pleased with this arrangement, and expressed themselves in extravagant terms of thankfulness for a trip which, no doubt, would be exceedingly pleasant. The Captain then proceeded to explain to them the nature of the battery which was to be experimented with on the morrow. He explained the object to be obtained by this battery, which was to break up the blockading fleet at the mouth of the James River, and thus give the South an outlet to the sea.

The next day they started in a carriage for the scene of the exhibition, which was located about ten miles below the city. Arriving at the appointed spot, they found quite a large number of military men, many of them accompanied by ladies, assembled to witness the testing of the machine, from which so much was expected.

A large scow had been towed into the middle of the river, and the submarine vessel was to approach it and attach a magazine, containing nearly half a bushel of powder, to which was attached several deadly projectiles, and this was to be fired by a peculiarly constructed fuse, connected by a long wire coiled on board the submarine vessel.

At a given signal the boat was sunk into the river, about half a mile below the scow, and shortly afterwards it began to make its way under the water towards it. The only visible sign of its existence was a large float that rested on the surface of the water, and which was connected with the vessel below, designed to supply the men that operated it with air. This float was painted a dark green, to imitate the color of the water, and could only be noticed by the most careful observer. As my operative listened to a full explanation of the machine and its workings, she could scarcely control her emotions of fear for the safety of the Federal boats, in the event of its successful operation, and provided the government was not speedily warned of its existence.

It was learned that this vessel was but a small working model of a much larger one, that was now nearly completed, and would be finished in about two weeks, and would then be taken to the mouth of the James River, to operate on the war vessels guarding that port.

They had obtained an excellent position, where they had a full view of the river, and with the aid of a strong field-glass they could distinctly watch the large "float," which indicated the approach of the vessel.