Should you desire to expand the wings, the order of the feathers must be reversed, commencing with the two middle ones. When perfectly dry, place them in the natural order, and they will ever afterwards continue as you wish them. If the crest is wished to be erect, the feathers must be moved in a contrary direction for a day or two, when they will soon take the position wished for. The box must now be placed out of the reach of the sun, air, or fire, so that the skin may dry slowly. The corrosive sublimate is of much service in this respect, for it renders the skin moist and flexible for many days. The bird should be lifted every day, so that any faults may be corrected which take place while drying. The small wing-coverts are apt to rise, owing to the skin coming in contact with the wing bones. The part which rises should be gently pulled with the finger and thumb for a day or two, and the feathers pressed down. The feathers should be frequently adjusted so as to render them distinct and visible. The legs begin to stiffen in three or four days, when it will be time to place them in the desired position; and the toes either arranged, or curved, so as to hold a branch, in which two spikes must be placed for the reception of the feet, whereon they are to be stuck, and can afterwards be removed at pleasure. All the threads which kept the different parts in their places may now be removed. Touch the whole feathers with a solution of corrosive sublimate, so as to preserve them from the attack of moths. The surest way of proceeding is to immerse the bird in the solution of corrosive sublimate, and then dry it before you begin to dissect it. If it is intended to represent the bird flying, its wings are extended to their utmost stretch, the tail placed horizontally, and expanded, the neck forced forward, the legs and feet drawn up close to the breast, with the toes closed. It may then be suspended from the ceiling, by a piece of very fine _brass_ wire, such as is used for piano-forte strings. A very spirited and striking position is, when the bird is about to take flight. In this attitude, it is placed with the body reclining forward, and the wings slightly raised, which can be managed without the assistance of external wires, by merely placing a little cotton or tow under the wings, while the skin is yet wet. Descriptions of this kind are endless; let those who intend stuffing birds study nature in its various details, and, where this can not be come at, good books and prints will be found an excellent substitute. GYMNASTICS.