The following plate exhibits a piano-forte on the elevator passing from the fly-finisher's department to the ware-rooms. Of these steam elevators there are two, one at each end of the building; one for passing workmen, as well as lumber, to and from the machine-shop and drying-rooms, and one for passing cases and pianos up and down to the different rooms. Much ingenuity is shown in their construction, being so adjusted as to be sent up or down by a person on either floor, or by one on the platform, who, going or stopping at will, thus saves an immense amount of hard labor.

Water from the Albany water-works is carried throughout the building on to each floor, with sinks, hose, and every convenience for the workmen, so that they may have no occasion to leave the premises during the working hours. One thing we must not forget to point out, and that is the Top Veneering-Press, made on the plan of "Dicks's Patent Anti-Friction Press" (shown in the following engraving on the upper floor at left hand), and we believe the only press of the kind in the world. It was made to order expressly for Messrs. Boardman & Gray, and its strong arms and massive iron bed-plates denote that it is designed for purposes where power is required. It is used in veneering the tops for their piano-fortes, and it is warranted that two men at the cranks, in a moment's time, can produce a pressure of one hundred tons with perfect ease. It is so arranged that the veneers are laid for several tops at one time. Tops made and veneers laid under such a pressure will remain level and true and perfectly secure. Messrs. Boardman & Gray have used this press upwards of eighteen months, and find that it works excellently, and consider it a great addition to their other labor-saving machines.

STEAM ELEVATOR, AND DICKS'S PATENT TOP VENEERING PRESS.

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Having thus given a passing glance at most of the mechanical parts of the piano-forte, we will now examine the varnishing and polishing departments, consisting of some five or more large rooms. As the different layers of varnish require time to dry, it is policy to let the varnish harden while the workmen are busy putting in the various internal parts of the piano. Thus the case, when it comes from the case-maker, goes first to the first varnishing-room, and receives several coats of varnish; and, when the workman is ready to put in the sounding-board and iron frame, it is taken from the varnish-room to his department; and, when he has finished his work, it is again returned to the varnishing department, where it remains until the finisher wants it, who, when done with it, returns it to the varnishing-room. Thus, these varnishing-rooms are the store-rooms for not only the cases, but all the parts that are varnished; and the drying of the varnishing is going on all the time that the other work is progressing. In this establishment, from 150 to 200 pianos are being manufactured in the course of each day. In the varnish-rooms, from 100 to 150 cases are at all times to be seen; others are in the hands of the workmen in the different rooms, in the various stages of progress towards completion. Besides the cases in the varnish-rooms, we may see all the different parts of the pianos in dozens and hundreds, legs, lyres, tops, desks, bars, &c. &c., forming quite a museum in its way. The processes of varnishing and polishing are as follows: The cases, which are all of rosewood, are covered first with a spirit-varnish made with shellac gum, which, drying almost instantly, becomes hard, and keeps the gum or pitch of the rosewood from acting on the regular oil varnish. After the case has been "shellacked," it then receives its first "coat of varnish" and left to dry; and then a second coat is applied, and again it is left to dry. The varnish used is made of the hardest kind of copal gum, and prepared for this express purpose. It is called scraping varnish; it dries hard and brittle, and is intended to fill in the grain of the wood. When it becomes thoroughly dry and hard, these two coats are scraped off with a steel scraper. The case then receives several coats of another kind of varnish; when this is dried, it is ready for rubbing, which is effected by means of an article made of cloth fastened on blocks of wood or cork; and the varnish is rubbed on with ground pumice stone and water (a process somewhat similar to that of polishing marble). A large machine, driven by the engine, is used for rubbing the tops of pianos and other large surfaces. When the whole surface is perfectly smooth and even, it receives an additional coat of varnish. Each coat having become dry, hard, and firm, the surface receives another rubbing until it is perfectly smooth, when it receives a last flowing coat. After it is thoroughly dried and hardened, it is ready for the polishing process, which consists in first rubbing the surface with fine rotten stone, and then polishing with the fingers and hands until the whole surface is like a mirror wherein we can

"See ourselves as others see us."

POLISHING AND RUBBING DEPARTMENTS.

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