Swimming-Belts. The largest portion of the entrail of the ox, when nicely cleaned, forms an excellent material out of which to form a swimming-belt. Procure two of them from the butcher, and having washed them in soap and water, turn them inside out, and soak in a strong solution of alum water. Then tie up one end tightly with waxed string, blow full of air and secure the other end in a similar manner. The two guts having been thus treated should be hung up to dry, and in a few days varnished. The ends where they are tied should be covered with a solution of sealing-wax in spirit. If, however, in this form the belt is not considered sufficiently portable, the last direction may be omitted, and the air let out after each time of using. It will be liable, however, to get out of repair upon this plan.