But let us see how these comfortable, easy-moving chaps manage to handle the fuel sufficient to send twenty-five or thirty thousand tons of steel hurtling through the seas with so little apparent haste or effort. The running back of a sliding steel door brings a stream of coal running out of one of the bunkers, coal which, dumped from sacks into the entrance of a chute on one of the upper decks, has worked its way downward by gravity as that beneath it has been fed to the furnaces. This stream is caught in a "skip" of steel, shaped like the half of a cylinder and capable of holding something like a couple of hundredweight. Sliding fairly easily over the grilled deck--pushed by one man and pulled by another--the "skip" loads are dumped evenly along in front of the twelve doors which open--four to each--to the three furnaces under the boilers occupying this half of the stokehold. Now we come to the actual stoking. A bell suddenly clangs, echoing sharply from the steel walls, and instantly two of the lounging figures quicken to the alert. One scoops up a shovelful of coal and the other steps forward and rests a hand on the lever running to one of the furnace doors. A second or two later, as a number shows on a dial at the side, the latter pushes the lever sharply, and the door is pressed upwards, revealing a glowing bed of fire running back out of sight under the boiler. The shovel is already swinging forward as the door rises, and, missing that steel plate by a fraction of an inch, its contents are discharged--with a quick "wristy" motion which scatters the coal evenly over the fire--into the furnace. As the shovel is drawn back the lever is released, permitting the door to fall shut of its own weight. With all possible speed another scoop is filled with coal and the operation repeated once or twice more according to the speed which it is desired to maintain. Then the two men relax and stand at ease until another clanging of the bell heralds the number of the next furnace to be fired. Then the door is lifted and the coal thrown in as before, the operation going on until each of the twelve has received its two, three, or four shovels, when--always subject to the indicator on the wall--it begins over again.