The ordinary form for a Marine policy, printed and supplied by Government prior to August 1887, is in the main only suitable for merchant shipping; hence clauses have to be added to make that form of service in the case of yachts. Thus the time and dates between which the policy is to hold good must be stated, after which should come what may be called the-- No. 1 Yachting Clause, taking in the following conditions under which Lloyd's hold themselves liable. It runs thus:-- In port and at sea, in docks and graving docks, and on ways, gridirons, and pontoons, and / or on the mud, and / or hard, at all times, in all places, and on all occasions, services and trades whatsoever and wheresoever, under steam or sail, with leave to sail with or without pilots, to tow and assist vessels or craft in all situations, and to be towed, and to go trial trips. Including all risks and accidents arising from navigation by steam or otherwise. To include the risk of launching. No. 2 Yachting Clause should allow the yacht to 'touch and stay at any ports or places whatsoever and wheresoever, and for any and all purposes.' The No. 3 Yachting Clause makes the liability cover the hulls, spars, sails, materials, fittings, boats (including launch, steam or otherwise, if any), &c. The No. 4 Yachting Clause is a promise to return a certain sum for every fifteen consecutive days cancelled, and for every fifteen consecutive days laid up dismantling, overhauling, repairing, altering, or fitting out. No. 5 the Collision Clause. No. 6 the Twenty-pound Clause. No. 7 the Prevention Clause, No. 1. No. 8 the Prevention Clause, No. 2. With regard to the main clauses of the original Government form, it will be specially noticed that not one makes it necessary for the owner or skipper, or whoever may be in charge of the yacht, to be the holder of a Board of Trade Certificate. Then, after enumerating all the perils from which a vessel may run the risk of total loss, the form finishes up by stating that where only partial damage takes place, the underwriters are ready to pay an average for the repair of such damage at the rate of 3 per cent. That is to say, supposing a 10-tonner is insured at 900_l._ and she splits her mainsail and carries away her mast, which in its fall smashes up the boat, the policy will cover up to 27_l._ of the average value only, and the difference between that and the true value will become a loss to the insurer. This is known as the Average Clause.