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Zypro Gorgy Dectorum 16
Page 06
It was cold, especially at night. Nearly all my instruments had been badly damaged in our many accidents in Brazil, and I was unable to replace them either in Para or Manaos. Owing, therefore, to the lack of self-registering thermometers, I could not keep an accurate daily record of the maximum and minimum temperatures. After leaving Camp 93, we went over a really fearful trail, my mules being all the time chest-deep in mud. It was extremely hard work for the animals to get along. As is well known to any traveller, all animals of a caravan when on a narrow path step in the footprints of their predecessors, so that on that trail they had sunk a long series of deep holes in the soft clay, which were constantly being filled by water sliding from the mountain-side. In that particular part the mud had highly caustic qualities, which burnt the skin and caused irritation each time you were splashed. The muleteers who were walking had their feet badly burnt by it, one man suffering agony from his blistered feet.
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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