The mangrove trees of Florida germinate their seeds upon the tree and then drop little plants off into the water; here winds and currents may move them hither and yon as they blindly explore for a rooting-place. The cocoanut tree covers its nuts with a kind of "excelsior" which prevents their breaking upon the rocks. This also facilitates the floating and transportation of the nut in the sea. When the breakers have flung it upon rocks or broken reefs, here its fibrous covering helps it cling until the young roots grow and anchor it securely. Thus endlessly during all the seasons of the year the trees are sowing their ripened seed and sending them forth, variously equipped, blindly to seek a place in which they may live, perpetuate the species, and extend the forest. It is well that nature sows seeds like a spendthrift. So many are the chances against the seed, so numerous are the destroying agencies, so few are the places in reach that are unoccupied, that perhaps not more than one seed in a million ever germinates, and hardly one tree in a thousand that starts to grow ever attains maturity. Through sheer force of numbers and continuous seed-scattering, the necessarily random methods of nature produce results; and where opportunity opens, trees promptly extend their holdings or reclaim a territory from which they have been driven. Many times I have wandered through the coniferous forests in the mountains when the seeds were ripe and fluttering thick as snowflakes to the earth. Visiting ridges, slopes, and cañons, I have watched the pines, firs, and spruces closing a year's busy, invisible activity by merrily strewing the air and the earth with their fruits,--seeding for the centuries to come. One breathless autumn day I looked up into the blue sky from the bottom of a cañon. The golden air was as thickly filled with winged seeds as a perfect night with stars. A light local air-current made a milky way across this sky. Myriads of becalmed and suspended seeds were fixed stars. Some of the seeds, each with a filmy wing, hurried through elliptical orbits like comets as they settled to the earth; while innumerable others, as they came rotating down, were revolving through planetary orbits in this seed-sown field of space. Now and then a number of cones on a fir tree collapsed and precipitated into space a meteoric shower of slow-descending seeds and a hurried zigzag fall of heavier scales. Occasionally on a ridge-top a few of the lighter seeds would come floating upward through an air-chimney as though carried in an invisible smoke-column.