Once on a time, a great many years ago, so many years that if your father should give you a dollar for every year you could buy up the whole town you live in and have enough left to pay the National Debt; in those old days when the great Northwest consisted only of a few hills, ragged and barren, and full of copper and quartz; in the days when the Northern Ocean washed the crest of Mount Washington and wrote its name upon the Pictured Rocks, and the tide of the Pacific swept over Plymouth Rock and surged up against Bunker Hill; when the Gulf of Mexico rolled its warm and shallow waters as far north as Escanaba and Eau Claire; in fact, an immensely long time ago--there lived somewhere in Oconto County, Wisconsin, a little jelly-fish. It was a curious creature, about the shape of half an apple, and the size of a cat's thimble, and it floated around in the water and ate little things and opened and shut its umbrella, pretty much as jelly-fishes do in the ocean now. It had a great many little feelers that hung down all around like so many mites of snakes, and so it was named Medusa, after that lady in the old times who wore snakes instead of hair, and who felt so badly because she couldn't do them up. Well, our little Medusa floated around and opened and shut her umbrella for a long time--a month, or a year, perhaps--we don't know how long. Then, one morning, down among the sea-weeds, she laid a whole lot of tiny eggs, transparent as crab-apple jelly and much smaller than a dew-drop on the end of a pine-leaf. Now she leaves the scene, and our story henceforth concerns only one of these eggs. Well, one day, the sun shone down into the water--the same sun that shines through your window now--and a little fellow whom we will call Favosites, because that was his name, woke up inside of the egg and came out into the great world. He was only a wee bit of floating jelly, shaped like a cartridge pointed at both ends. He had at his sides an immense number of little paddles that went flapping, flapping all the time, keeping him constantly in motion, whether the little fellow wanted to go or not. So he kept scudding along in the water, dodging from right to left, to avoid the ungainly creatures that wanted to eat him. There were crabs and clams, of a fashion that neither you nor I will ever see alive. There were huge animals with great eyes, savage jaws and long feelers, that sat in the end of a long, round shell and glowered at him, and smaller ones of the same kind that looked like lobsters in a dinner-horn. But none of these got the little fellow, else I should not have any story to tell.