Another source of danger which tends to make ships unsea-worthy is the system of building vessels now-a-days with “well decks.” The proper name for these in my estimation is “ill decks.” “Well decks” are not only weak points in a ship from a structural point of view, but in addition are positively dangerous, inasmuch as they are open to take in, and retain, water. As nobody likes these decks, neither designer, builder, commander, or seaman, it may be asked why ships are built with them? The explanation is simply this: Every ship on entering or clearing out of a port has to pay pilotage, towage, harbour, wharf, and other dues. These dues are, as a rule, calculated on the registered tonnage of the vessel at so much per ton,—in some cases even the number of hands on board is dependent on the tonnage—and where a “well deck” occurs in a ship, being open space, it is not calculated as carrying space in reckoning the ship’s tonnage. Hence two ships might really be of the same size, but if one of them had a “well deck”—or two or three as some ships have—her registered tonnage would be considerably less than the other vessel whose upper deck was flush fore and aft. At first sight this might seem a very slight difference, not worth mentioning, but when it comes to be remembered that every time a ship goes into a port the allowance, or shortage, for her “well decks” is saved by the owner, and as ships are in and out of port a good many times in the course of their career, the saving soon runs up to a considerable sum of money.