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Zamua-2 Directory 08
Page 05
Full forty kinds of myriapods occur in any area comprising one hundred square miles in the eastern United States. About twenty-five of them go by the general name of "thousand-legs" or millipedes, as each has from forty to fifty-five cylindrical rings in the body, and two pairs of legs to each ring. The other fifteen belong to the "centipede" group, the body consisting of about sixteen flattened segments, or rings, each bearing a single pair of legs. When disturbed, the "thousand-legs" generally coils up and remains motionless, shamming death, or "playing possum," as it is popularly put, as a means of defence; while the centipede scampers hurriedly away and endeavors to hide beneath leaf, chip, or other object.
Once started in the launch _Rimac_, we went through interesting channels, outlets of the main stream being often noticeable on either bank, cutting wide passages through the forest and forming one or more shallow lakelets, with innumerable aquatic plants on the surface of the water. As we went farther it became easy to understand how islands were constantly forming in the river. Quantities of large and small logs of wood were continually floating down the stream; the banks were gradually being eaten away by the current. Whole trees fell down with their immense branches and polypi-like roots, and formed a barrier arresting the progress of the floating wood. Particles of earth deposited by wind and by water saturated with impurities settled there. Soon grass would begin to grow on those deposits, which quickly collected more deposits of flying and floating particles. The soft bottom of the river, disturbed by the deviated current, piled up mud against the submerged branches resting on the river-bed. Quickly an island was then formed; more wood accumulated, more grass, more mud; the base of the islands would increase rapidly, and in the space of a few years islands several kilometres in length rose above the water.
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