Of these we have various styles, some sufficiently heavy for a six foot mill stone, and to tram by screws. The centre lift part is constructed in same style as the arch-step described above. We have patterns of all lengths of lighter levers, as shown under head of Lighter Levers, which fit over this style of step in same manner as shown, excepting we provide an independent rest for the rear end of the lever and screw for regulating it. This makes a very desirable rig for the lower end of mill spindles in any mill, and are fast taking the place of all others. It obviates the cutting of the bridge-tree or timber on which it rests. The steel on which the spindle-toe rests and presses sidewise in running is constructed in various ways. In some situations we provide a flat plate, below for taking the downward pressure, and above it a heavy steel ring supported a little above to allow a chamber for the flow of oil around the very extreme lower end of the steel spindle toe. This chamber is free to be supplied with oil from the upper receptacle through holes provided for the purpose. A bearing made with a hardened steel plate below and a ring of good anti-friction metal around the spindle-toe is the most desirable when properly constructed and of suitable metals. MILL CURBS AND HOOPS. [Illustration: Fig. 1.] Of all the various styles and sizes we are better prepared to make than any other establishment we know of in the United States. We keep on hand large quantities of the material of which they are made so that it may be thoroughly seasoned before use. Their construction is as follows: the tops are made of double-thickness lapped and tongued and screwed together. The body is made of pine staves, worked on a double-headed tongueing and grooving machine made for this purpose, with their mandrels in radius positions to make a close fitting joint for any size we choose to make; the outside bands are of black walnut, under which we place neat iron bands, one at the base and one near the top, under the projecting curb or top. For protecting the wood from being affected, we coat the inside with white lead paint, and give the outside three coats of good varnish. In the preparation to ship them and keep every part from the liability of damaging in the least, we make a complete protection of a light frame work and circle pieces surrounding the whole. When the hopper frame and feed rig is ordered we place them inside. This not only makes a strong and durable cover to the mill-stone, but one that for style of finish and attractive appearance pleases all. Silent Feeders. [Illustration: Fig. 2.]