_Fig._ 17. shews the other Sort of Wreath, which is always made in Brass: Its Cavity is a hollow Cylinder like the former: When it is on the Spindle, its End _a b c_ is thrust into the Hole of the Board (made wider for the Purpose) until _d e f_ come close to the Board, and stop it from entering any farther; then we screw it on to the Spindle by the Holes, as the other Sort of Wreath is described to be screwed. This is the best Sort of Wreath; because it keeps the Spindle from wearing against the Edges of the Hole, and then the Spindle never has any Friction against the Wood in any Part of it; but the other Sort are more easily made (especially of Wood), and the Spindle will last a great while in them; or if it be worn out, the Expence of Three-pence or Four-pence will purchase a new Spindle. Now I must return to _Fig._ 15. where the Spindle E having its Four Wreaths fixt on it, we turn it round with our Hand, to see whether the Wreaths are put on true; and when they are so, neither the Spindle, nor the Hoppers, can move end-ways: Tho’ the Spindle be pretty hard to turn round, the Wheels will soon cause it to turn easily. Whilst the Spindle is in this Posture, we turn the Hopper Bottom upwards, and mark the Spindle for cutting the Notches in the manner before directed; and then we take off the Spindle, and cut the Notches, and also cut each End of the Spindle square, up to a Shoulder at each End, so that the Wheels may come easily on without knocking or thrusting; and then we return the Spindle to its Place, and put on the Wheels, pinning them on with each a long Nail, which being crooked at the Ends, prevent it from falling out, but may be very easily pulled out with the Claws of a Hammer; but we must take care, that neither the square Ends of the Spindle, nor the square Holes in the Naves (or Hubs) of the Wheels (into which they enter), be taper; for, if they are taper, the Wheels will be apt to work themselves off. The Piece of Wood, _Fig._ 18. is that which goes over the Standard, and, being placed in the Hopper, as F. in _Fig._ 15. draws that Part of the Hopper by its Inside _a b_ bearing against the fore Part of the Standard; and that Part of it from _b_ to _c_, being the Breadth of the Standard, bears against its inner Inside, to prevent the Hopper from going any farther towards that End. This Piece of Wood is fastened to the Boards of the Hopper, either by Screws or Nails: This Piece, from _d_ to _e_, must be of such a Thickness, that the Standard, bearing against its Inside _b c_, may be equidistant from each Board, to which this Piece is fastened. The Part, or fore Side of this Piece _f g_, must be the Length of the Distance between Board and Board, to which it is fastened; and that is exactly Four Inches. Its Thickness and Depth must be such as may make it strong enough for the Purposes intended.