With Messrs. Huygens, father and son, we rode to the navy-yard, which is under the command of a commodore. The commodore was just gone travelling, therefore, we were accompanied on our tour by Captain Booth. In this navy-yard ships are only built and refitted; after that they descend the Potomac into the Chesapeake Bay, and go to Norfolk, where they are armed. At the time of our visit there were but two frigates in the yard, called forty-four gun ships, but mounting sixty-four pieces: the Congress, an old ship, which was repairing, and the Potomac, an entirely new ship, which has been launched, but subsequently hauled up and placed under a roof.
Upon the spot where the frigate Brandywine, which carried Gen. La Fayette to France, was built, the keel of a new frigate was laid, and at the same time the foundation for a house over this new ship was begun. The ground being very moist, this building is erected on piles. Opposite the entrance of the navy-yard, stands a rostral column of white marble with allegoric figures. It was erected by the officers and midshipmen of the navy of the United States, to commemorate the death of their comrades who fell in the attack of Tripoli. The English, at the time of their taking possession of Washington, on the 25th of June, 1814, broke the fingers of one hand belonging to the allegoric figure representing America, and destroyed the stylus in the hand of the muse of history. This inscription has been added to the column: “mutilated by the British.” At the foot of the monument stand two Spanish brass twenty-four pounders, taken by the Americans at Tripoli.
In this, as well as in other American navy-yards, there are several buildings. I found large forges where chain-cables are made, and tried in the same manner I had witnessed two years ago in Newbridge, South Wales. All the old copper taken from the ships is melted, and with an alloy of brass, converted into utensils of every description used on board ships; a steam-engine of fourteen horse-power moves a saw-mill, consisting of two large and several smaller circular saws, as also, machines for block-making, which however, can by no means be compared with Brunel’s block machine in Portsmouth; in the little arsenal are the muskets, swords, &c. I observed a contrivance on the locks of the guns to insulate the priming, and secure it in damp weather. I saw also a kind of repeating musket with two locks, one behind the other. With such muskets, by means of the anterior lock, twelve consecutive discharges can be produced, and these being over, the gun is loaded again like an ordinary infantry musket, and fired by means of the lowest lock. After the anterior lock is fired, all the remaining shots incessantly follow, and cannot be withheld at will, as it is the case with the repeating gun bought by me in New York, already described. It is yet unknown how this successive firing can be obtained. Captain Booth showed me also double screws of his own invention, the object of which is to supply the place of ordinary lanyards for ships. This officer has obtained a patent for his contrivance, and it has been adopted, for experiment, in the frigate Brandywine; in the same navy-yard is a laboratory, under the arsenal, where the necessary fire-works for the artillery are made. The place seemed to me to be ill chosen, since an explosion that may easily happen in such an establishment, might cause most terrible consequences to the navy-yard.
Over the Potomac there is a long wooden bridge, built upon ordinary cross-beams. I measured it, and found it to be fifteen paces broad, and one thousand nine hundred long. My paces being to the ordinary ones in the relation of four to five, it may be assumed that it is about two thousand three hundred and seventy-five paces in length. It required nineteen minutes to walk from one end to the other. Every foot-passenger pays six cents. This bridge astonishes by its length, but not at all in its execution, for it is clumsy and coarse. Many of the planks are rotten, and it is in want of repair; it has two side-walks, one of them is separated from the road by a rail. It is lighted by night with lanterns. It is provided with two drawbridges, in order to let vessels pass. It grew dark before I returned home, and was surprised at the stillness of the streets, as I scarcely met an individual.
Patents of invention are issued from the patent-office; whoever wishes to obtain a patent for an invention, is obliged to deliver a model or an accurate drawing of it. These models are exposed in an appropriate place, where they remain until the expiration of the time for which the patents are granted; they are then put into the lumber-room. Among such models, there certainly is a great number of things of little importance, as for instance, a contrivance for peeling apples; there are also ninety-six models for making nails in different ways, but some of them very remarkable. The most interesting models of machinery seemed to me to be those intended to remove mud from the bottoms of rivers, and canals, or to make them deeper. One of them consists of an ordinary steam-boat; with her they go to the spot where they are to work; arrived at the spot they cast anchor, stop the two water-wheels, and with an apparatus which is moved by the engine, draw the mud from the bottom. According to another model, the same operation can be performed by means of a draw-wheel. A great many models are intended to separate seed from cotton, to beat, spin, and weave it; none of them, however, are reputed to be superior to the known English machines.
Of steam-engines and steam-boats there are a great many models of very singular form, also steam-boats with rotatory motions; they however do not answer the purpose. I saw patterns of railways, and models of machines to draw boats from a lower canal into a higher one, by help of an inclined plane. Then two models of floating covered batteries. One of them was an oblong case, in which is fixed a steam-engine, giving to two long iron bars a rotatory motion. These bars, like two clock-hands, projecting off the deck, are intended to keep off a boarding enemy. A model to compress leaden bullets, in order to give them more weight. A great number of household and kitchen apparatus, fire-places of different descriptions, an earth-augur for seeking water, fire-engines of various kinds, a fire-proof roof, contrived by a German, several machines to make bricks, instruments by means of which, in navigating the Mississippi, trees lying under water can be taken hold of and sawed to pieces without stopping the vessel in its course, machinery to bore holes in rocks, and others to hoist rocks out of water; the machine contrived in London by Perkins to print with steel; models of book printing-presses; models for combing wool, and dressing woollen stuffs; fan-mills; leather manufacturing instruments, and among others, an instrument for splitting hides; a great number of agricultural instruments, namely, a great many ploughs for every kind of soil, invented by Germans; machines for mowing grass, for thrashing and cutting straw. Among the most important machines, I will mention one for making blocks, which is considered not to be inferior in any respect to that of Brunel, in Portsmouth, and another which renders steeping of flax unnecessary, and yet fits it after fourteen days drying to be broken and heckled. For permission to take a copy of the machine, one must pay ten dollars to the inventor. I ordered two copies; one for the Agricultural Society of Ghent, and another to present to my father. Several fine models of bridges, especially of hanging ones, among others, one of the bridges in Trenton, near Philadelphia, and another of that near Fayetteville, in North Carolina; also one of a hanging bridge, under which is suspended a canal passing over the river. Respecting arms I did not find much improvement. There was also a triangle of steel, weighing six pounds, upon which three different hammers struck, to supply the place of church bells. This ringing is said to be heard at a great distance. It has been introduced in several places to assemble the people.
The patent-office is in the same building with the post-office. They pointed out to me two large gilt frames with the arms of France and Navarre. They hung before the catastrophe of 1814, in the house of the president, and contained full length portraits of Louis XVI. and Marie Antoinette, which were presented in 1783, by those unfortunate monarchs to the United States, at their especial desire. Both portraits suddenly disappeared, and it is believed that it happened in 1814, when the English made their unexpected visit to Washington, and burnt down the house of the president.
The patent-office is under the direction of Dr. Thornton,[I.30] who is an able draughtsman. Under Dr. Thornton, a Swiss is employed, whose name is Keller, a very able mechanic, and inspector of the model room, who explained every thing to me. Dr. Thornton was so kind as to accompany me to a sculptor, who, by means of casting a mould upon the face, obtains a striking resemblance, and has made busts of the first American statesmen, &c.
I arranged a party to the Falls of Potomac, with Mr. De Bresson, sixteen miles distant, where we were accompanied by Mr. Huygens, Jr. On the 6th of November, at nine o’clock, we left Washington and went five miles upon a very rough road, along the left bank of the river, which is at first very broad. Both shores are hilly and covered with wood, for the most part hickory and different species of oak. Of the primitive woods nothing is to be seen, for generally the wood is second growth. The banks soon became rocky, and we observed even in the river some projecting rocks. On the left shore they have dug a canal, this, however is too narrow, and only navigable by long boats, resembling the Durham-boats on the St. Lawrence river. In these boats, wood, lumber, stones, especially mill-stones, and the harvest from the upper countries, are carried to Washington.
Five miles above the city, we went over, on a hanging bridge, to the right shore. The chains consist of bars of wrought iron. The bridge itself is of wood, as well as the two cross-beams standing on its extremities, through which the chains are passed; these cross-beams form a kind of entrance, having an Egyptian appearance. The length of the bridge is about one hundred and sixteen feet, its breadth sixteen feet. A rather high toll is paid for passing it; we paid a dollar and a half for a carriage with two horses, for going and coming. The road, passing almost incessantly through a wood, became a little better after we arrived at the other side of the bridge. It was called a turnpike road, but still it continued hilly. We passed but a single inn, and saw but a single country house, which belonged to Commodore Jones, whose daughter became a Catholic and a nun, in a convent at Georgetown; this occurrence produced a great sensation in the United States. Most of the people we met with, were tattered negroes, who humbly saluted us. We were now in the state of Virginia, in the vicinity of the falls; when the road became very bad, we left our vehicle and went on foot through the forest, to see this natural curiosity, whose noise made us sensible of its proximity.