All this is only the merest suggestion of what is done for the main part of the vessel's hull. The ends require many modifications, because the shape there approaches a V, and so the floors cannot cross the keel as holding bodies. But the breast-hooks forward and crutches aft, the deck transom, which is the foundation for the deck abaft as well as the assemblage of timbers uniting the stern to the body of the vessel, with all the other parts that make up the ends, cannot be more than mentioned here. Then come the decks, which are quite complex in themselves, and still more complex by reason of the mast-holes and hatchways cut out of them all, and the windlass, bitts, and capstan built into the one that is exposed to the storm. To make sure that whatever strength is taken out by cutting is restored in some other way, and that the exposed deck which has to resist the strains put upon the structures built into it is specially reinforced, the most careful provision must be made for the mast-holes; for the hatchways {89} with their coamings fore and aft on carlings that reach from beam to beam; for the riding bitts, which are posts to hold the cable when the vessel is at anchor, and which must therefore be immensely strong; for the windlass, which in the merchant service often did the double duty of the bitts and capstan; and for a multiplicity of other parts. A landsman could hardly believe what a marvellous adjustment of co-operating parts is required for a ship unless he actually watches its construction. He will then understand why it is by far the most wonderful structure man has ever built throughout all the ages of his evolution. It represents his first success in mastering an element not his own; and, whatever the future may see in the way of aviation, the priority of seamanship will always remain secure by thousands and thousands of known and unknown years. But we are still no farther than a few parts of the hull. There is the stepping of the masts, with their heels set firm and square above the keel, and their rake 'right plim' throughout. Then there is the whole of the rigging--a perfect maze to look at, though an equally perfect device to use; the sails, which require the most highly expert workmanship to make; {90} the rudder, and many other essentials. Finally, there is all that is needed in every well-found vessel which is 'fit to go foreign.' No vessel would go far unless its under-water parts were either sheathed, tarred, or tallowed; for sea-worms burrow alarmingly, and 'whiskers' grow like the obnoxious weeds they are. These particulars, of course, leave many important gaps in the process. Then the hull has to be transferred from the inclined plane of block piles, on which it was built, to a cradle, on which it moves down the sliding-ways into the water.