will charge, more or less, any day in the year, by observing the instructions to be given for that purpose, in their proper place.

We will begin with the frame that is to support the wheel, and the glass that is to be turned by the wheel: they must both be placed in one frame, with the wheel directly under the whirl that is put upon one end of the glass, that a band may be passed round the wheel and over the whirl of the glass: in this situation, the wheel, being turned by a crank, will turn the glass also, by help of the band.

The frame will consist of two upright posts, about five or five and a half feet high, framed into two blocks or sills, about two feet and a half long: these may be five inches wide, and three deep, and framed together by two cross pieces; the distance of the sills must be determined by the distance of the two upright posts; and the distance of the upright posts must be determined by the length of the glass or cylinder, which is to be fitted to run between these upright timbers. This remark will apply in all cases of constructing the frame. But I mean, in this cheap construction, to use a common decanter for the cylinder, or globe, as it is called. We will suppose the decanter to be nine inches long, and we will suppose the woodwork, which must come upon the decanter, to occupy three more, which will make twelve inches; and two inches we will allow free, between the ends of the glass, &c. and the upright posts and timbers: the whole distance then will be fourteen inches. This will answer for almost any decanter; because the wood screws that are to be passed through these two posts, to support the cylinder or glass, may be varied a little, by passing one screw further through the wood than the other, &c. These upright pieces may be formed out of a plank, two inches thick and four inches wide. The screws that support the cylinder are to be inserted or passed through the upright posts, within six inches of the top, on a right horizontal line, pointing directly to each other; these points mark the centre of the glass: just below the glass, so as to clear the surface of the glass one or two inches, a piece of wood must be framed across into the side pieces, to support them, and to rest the hand upon, when the cushion is applied to the cylinder in order to charge the machine. The wheel is to be hung with a shaft pulled through its centre, so that its rim will fall below the cross-piece, just mentioned, about four inches. The two ends of the shaft may be supported on the sides of the upright posts, by cutting a half circle in the posts, and by cutting two half circles into two small clefts, and bringing them on over the other half circles cut into the posts: the two half circles making the whole circle of the shaft, they may be put on with nails or wood-screws. One end of the shaft must be left longer, and extended four inches clear of the outside of

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