of this establishment is "the government hospital for the insane." Its objects are the cure and kind treatment of the insane of the army and navy, and of the District of Columbia. It is under the control of a board of nine visitors, all of whom must be citizens of the said District. They are appointed by the President, and annually report to the Secretary of the Interior the condition of the asylum and its inmates. They serve without compensation.

The superintendent must be a physician. There is a farm attached to the asylum, which is under the direction of the superintendent, who receives patients upon the order of the Secretary the War or the Navy, and upon the order of the Secretary of the Interior. He may receive indigent insane persons residing in the District of Columbia. If other than indigent persons are admitted, they must pay for the privilege a sum not less than the cost of their support.

The military hospitals in time of war are for temporary purposes, and are established wherever the army happens to be, and especially near where the great battles have been fought, that immediate relief may be given to the sick and wounded. These are established by the commanders of the army, and are under their control.

NAVY AND MARINE HOSPITALS.

In 1811 an act was passed to establish navy hospitals, for the exclusive use of such seamen as belonged to the navy. This new institution was at first placed under the management of a board of commissioners known as the commissioners of navy hospitals. This commission consisted of the Secretaries of the Navy, Treasury, and War. But in 1832 this was changed, and the Secretary of the Navy was made sole trustee of the navy hospital fund, which was made up of $50,000 appropriated by Congress for that purpose, together with twenty cents per month collected from seamen belonging to the navy, and the fines imposed on navy officers, seamen, and marines.

The commissioners were authorized to purchsse or erect suitable buildings for navy hospitals.

THE MARINE HOSPITALS

are located near important seaports. At these places seamen depart for, and arrive from their voyages, and are found in the greatest numbers; and here the funds for the support of the marine hospitals are collected, as is the tonnage on ships, viz.: by the collectors of the ports. For this purpose the law authorizes the collectors of customs to demand and receive the sum of twenty cents per month from the wages of every sailor; and every master of a vessel is obliged to render to the collector an accurate account

of the number of seamen on board his vessel, and of the time they have been employed by him, since his last entry into any port of the United States. These twenty cents the captain must pay the collector, but he is allowed to deduct it from each seaman's wages. In this manner the funds for the building, furnishing, and support of the marine hospitals are raised. The collectors of the ports pay them into the UnitedStates Treasury, and the Treasurer disburses them to the directors of the hospitals as they are needed. The directors are appointed by the President. They appropriate the funds, and have the general direction and management of the institutions.

The money thus collected from seamen is called "hospital money," and the fund is denominated "the marine hospital fund." In 1864 there were 24 marine hospitals in the United States.

NAVY YARDS.

Here are gathered such stores and materials as are required for the construction or repairs of vessels, and hundreds of skilled workmen are constantly employed in rendering the navy effective, replacing vessels that have become unseaworthy, repairing damages, or building such vessels of special construction as the varying demands of the service may require.

These are established at different places along the coast, mot convenient for the purpose. There is one at Philadelphia, Pa., at Brooklyn, N. Y., at Portsmouth, Va., at Pensacola, Fla. Here vessels are laid up when not in "commission" or active service, or are sent for repairs, or to obtain their stores before departing to their distant stations. All the officers necessary for keeping all these matters in order are stationed at these yards; and the Navy Department, by these means, preserves the same perfect system of organization and efficiency as we have seen to characterize other branches of the executive administration.

THE NAVAL ACADEMY.

This school is now established at Annapolis, in the State of Maryland, near Washington. The pupils are called midshipmen. They are taught navigation and such other branches of science as are necessary to make them good seamen and naval officers. Each Congressional District in every State and Territory is entitled to send two students to be educated at the Academy. The District of Columbia is also entitled to send two. Besides which, the President is allowed to appoint ten additional ones at large, and three more from the boys enlisted in the navy.

After their graduating examination, if they pass, they are commissioned as ensigns in the navy, and rank according to merit. Before admission, they are examined according to the regulations

made by the Secretary of the Navy, and must be between the ages of fourteen and seventeen years, sound, robust, and of good constitution.

THE NAVAL OBSERVATORY.

Nautical Science and Astronomy have advanced hand in hand; and to perfect the former as much as possible the United States Government established the Naval Observatory. This institution is located in Washington, and was originated by act of Congress in 1842, and put in operation in 1844.

The observatory was built and furnished with various astronomical and philosophical instruments, and a corps of professors were appointed to watch the movements of the heavenly bodies, and to make such observations and experiments as would enable them to determine many unsettled questions which relate to the science of navigation; and incidentally to another great government work, having especial reference to the same object; that is, the coast survey.

The professors are assiduous in their labors, and publish the results of their observations and the facts they have determined These are not only of use to our own seamen, but to those of all nations who are doing business on the great deep. Here the charts made by the coast survey are deposited, and from hence all our national vessels are furnished with them, and with all the nautical instruments they require.

The charts, instruments and books relating to astronomy and navigation, found here, make it the headquarters and depot of nautical science in the United States.

THE COAST SURVEY.

The Coast Survey is an organization employed in a thorough and scientific study of the shores of our country for a sufficient distance out from the land to ascertain all the features concealed by the water that may have a bearing on the safety of our navy and

commerce.

This work, like that relating to light houses, is under the management of a board, consisting of a superintendent, two principal assistants, two naval officers, and four officers of the army. These nine constitute the board. Then there are as many officers of the army and navy employed in the execution of the work as are deemed necessary. And the public vessels, by direction of the President, may be used in order to facilitate the work, for much of it must be done at sea. The survey extends 20 leagues from the shore. The surveyors must make accurate charts of the whole coast, in which are laid down all the islands, shoals, roads or anchorage grounds within twenty leagues of any part of the shore

of the United States. The courses or distances between the principal capes or headlands must be laid down, together with the soundings (depths of water) and everything else necessary to make a complete and accurate chart of every part of our coasts.

An annual report of this work must be made to Congress in December of each year, accompanied with charts, showing the progress of the work, the number of persons employed, the expenses incurred, the amount of work finished, and what is unfinished. These reports and charts are carefully preserved, and copies of them may be had at Washington for the use of our naval and merchant ships, to which they are of great service, as guides, whenever they are on or near the coast.

LIGHT HOUSES.

These, with Buoys, and Beacons, are a necessary practical supplement to the labors of the Coast Survey. Buoys and Beacons indicate the shoals, or dangerous rocks and reefs beneath the surface of the water, in the daytime; while light houses indicate the same, and show the mariner the bearings of the land, in the night; and by studying, in connection with these, the charts of the coast supplied by the Coast Survey, he may make his way as securely in the night or day through the concealed dangers of the treacherous waters as a landsman along a beaten highway.

Keepers are appointed by the government to keep them in repair, and to see that they are properly lighted every night. They are located at prominent points, and at dangerous places, all long the extensive lines of coast and shores.

To the end that light houses should be constructed and kept in repair, and that competent men might have the whole matter in charge, a law of 1852 authorized the President to appoint two officers of the navy, of high rank, one officer of the corps of engineers of the army, one officer of the topographical engineers, and two civilians of high scientific attainments, to form a LIGHT HOUSE BOARD for the United States. This board is attached to the Treasury Department, and the Secretary of the Treasury superintends its operations. The board has in charge the building, illumination, and inspection of light houses, light vessels, buoys, beacons, sea marks, and their appendages.

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Congress has imposed a tax, or laid a duty of 50 cents per ton on all foreign vessels entering any ports of the United States. This is called LIGHT MONEY. It is collected in the same way as tonnage duties are, i. e., by the collector of the port where the ship arrives.

LETTERS OF MARQUE AND REPRISAL.

A letter of Marque and Reprisal is a formal commission given to the commander of a private armed vessel, called a privateer,