There are three steam-engines in operation at the works on the hill, one connected with the stocking-department, and two with the other operations carried on here.

Twenty-five thousand dollars' worth of oil is used yearly in lubricating the machinery, and the various pieces of iron and steel, as they are being turned, bored, milled, broached, etc.

At the water-shops there are five miles of leather belting in use, while at the works on the hill the quantity greatly exceeds this amount.

In this establishment there are employed at the present time, as already remarked, twenty-six hundred workmen, who complete, on an average, about one thousand muskets daily, and the works may be increased to almost any extent,—a large square cast of the present works on the hill, and belonging to the Government, being admirably situated for the construction of additional shops.

This extensive manufactory is under the direction of a principal who is styled Superintendent, and who has the chief management of the business of the armory,—contracting for and purchasing all tools and materials necessary for manufacturing arms, engaging the workmen, determining their wages, and prescribing the necessary regulations for the local government of the establishment. To aid him in the important duties of the armory, there is allowed a master-armorer, who manages the mechanical operations, and is held accountable for all stock and tools put under his charge for the use of the armory, and for the proper workmanship of the muskets,—also a paymaster and storekeeper, whose duty it is to liquidate and pay all debts contracted for the armory by the superintendent, and to receive the finished arms, for which he is held accountable, as well as for all other public property delivered him. Each of these officers is allowed a numerous corps of clerks, to aid in keeping the accounts. There is also a foreman, or assistant master-armorer, to each principal branch of the work, and under him a foreman over every job. These are severally held accountable for all stock, tools, and parts of work delivered them for their respective departments, and they in their turn severally hold the individual workmen responsible for all stock, tools, or parts of work delivered to them. The assistant master-armorers, or foremen, are inspectors in their several branches, and are responsible for the faithful and correct performance of the work. Each individual artisan puts his own private mark on the work he executes, as do the inspectors likewise, when they examine and approve of the various parts of the musket. Thus, in case of any defect, the delinquent may readily be found. Monthly returns are made to the superintendent, and from these returns the monthly pay-rolls are made up.

Since the establishment of the armory in 1794-5, there have been fourteen superintendents, all but two of whom are classed as civilians, although a few of these had seen some military service. The armory has been under military rule but fifteen years out of the sixty-eight which have elapsed since it was established: namely, from April, 1841, to August, 1854; and from October, 1861, until the present time. A standing dispute on the subject of the government of the armory, which was kept up with much heat and acrimony for many years, culminated, in 1854, in the passage of a law by Congress, in favor of the civil administration. This continued until after the breaking out of the Rebellion, when Congress restored the military superintendency. The question of civil or military government, however, is of no practical importance to any person other than the aspirant for the place. The same rules and regulations governing the workmen employed at the armory, as well as the mode of payment, and the manner of doing the work, which were inaugurated by Benjamin Prescott, the superintendent from November, 1805, to May, 1815, are substantially in operation now, and have continued through all the changes which have occurred during more than half a century.

At the end of December, 1817, there had been completed in this manufactory 141,761 muskets. The expenditures for land and mill-seats, and for erecting machinery, water-shops, work-shops, stores, and buildings of every description, together with repairs, were estimated at $155,500. The other expenses, exclusive of the cost of stock and parts of work on hand, amounted to $1,553,100; stock and parts of muskets on hand, $111,545; and the total expenditures, from the commencement of the works, to December, 1817, $1,820,120.18.

From the establishment of the armory to the present date there have been manufactured 1,097,660 muskets, 250 rifles, 1,000 pistols, 1,202 carbines, 8,660 musketoons, 4,806 cadets' arms, 18 model muskets, and 16 model pistols and rifles. The reader will be surprised, perhaps, to learn, that there were 1,020 more muskets manufactured at these works during the year 1811 than in the year 1854. In 1850 and 1851, 113,406 muskets were altered in their locks, from flint to percussion, involving an amount of labor equal to the manufacture of 7,630 muskets. From 1809 to 1822, inclusive of those years, and exclusive of 1811 and 1812, nearly 50,000 muskets were repaired, involving labor equal to the manufacture of 11,540 muskets.

In addition to the large number of muskets manufactured at the Government works in Springfield, and which amount to upwards of three hundred thousand per annum, there are a vast number of private establishments throughout the Northern States, which turn out from two to five thousand muskets per month each. These various manufactories are situated at Hartford, Norfolk, Windsor Locks, Norwich, Middletown, Meriden, and Whitneyville, Ct., Providence, R.I., Manchester, N.H., Windsor, Vt., Trenton, N.J., Bridesburg, Pa., and New York City, Watertown, and Ilion, N.Y. Besides these, there are more than fifty establishments where separate parts of the musket are manufactured in large quantities, and purchased by Government to supply the places of those injured or destroyed in the service. It is estimated that the private armories alone are manufacturing monthly upwards of sixty thousand rifled muskets. The Government contracts for these arms extend to January next, and the total number which will then have been produced will be enormous. The cost of manufacturing a musket at the Government works is estimated at about nine dollars; but the contract-price to the private arms-companies is twenty dollars for those which equal the Government standard in every respect, nineteen dollars and ninety cents for those which lack a little in finish, nineteen dollars for the next grade, eighteen for the next, and sixteen for the lowest and poorest which are accepted.