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Evaporation being in large measure dependent on free circulation of air, the best sites for cocoanut plantations are on the seashore, exposed to the winds. They love the sea and will grow with their boles dipped at high tide in the salt water.
Five days later we had repassed this spot and were toiling over the sand and saline-covered depression of the great “Han-Hai,” or Dried-up Sea. The mountain freshets, dissolving the salt from their sandy channels, carry it down in solution and deposit it with evaporation in massive layers, forming a comparatively hard roadway in the midst of the shifting sand-dunes.
A liberal amount of stable manure has been applied, and the land deeply plowed, harrowed and cultivated, but as soon as water gets on it, it forms a deep crust on evaporation. Will guano help, or is sodium nitrate or potash the thing? None of the things you mention are of any particular use for the specific purpose you describe.
The water required for irrigation in Egypt is less than would be supposed from the exceeding rapidity of evaporation in that arid climate; for the soil is thoroughly saturated during the inundation, and infiltration from the Nile continues to supply a considerable amount of humidity in the dryest season.
"So, Stuart, you can see that the Caribbean Sea and the Gulf of Mexico have over them, in summer, a region of air, little disturbed by wind, not far from the Equator and which, therefore, becomes steadily heated and steadily saturated by the evaporation from the body of water below." "Yes," agreed the boy, "I can see that." "Very good.
"'As reincarnated all spirit becomes young but nourishment has undergone a change. The physiological process is singular. I need not dwell upon it. Evaporation replaces defecation. Love enters the Martian world, but it has lost much of the earthly passion. The physiological effects are also different. There are no children here.
Whether the proportion of water to land had adjusted itself before the country was inhabited, or whether during historical times the lakes were still gradually diminishing by the excess of evaporation over the quantity of water supplied by rain and snow, is an open question. At any rate the two causes I have mentioned will account for the changes which have taken place since the conquest.
After satisfying himself of the truth of the fact that the evaporation was really greater by night than by day Mr. H. proceeded to prove philosophically that nothing could be more reasonable than such a circumstance.
A yellowish liquid soon commenced to filter and drip into the pan, and this liquid was the curare, the arrow poison. It still required, however, to be concentrated by evaporation; and for this purpose the pan was transferred to a slow fire, where it was kept until the liquid became thickened by the heat. Another process was yet required before the curare was ready for the arrows.
Gascoigne was inclined to regard the little affair which had caused him so much anxiety the year before as an evaporation of superfluous moisture, a kind of finish to the baking process which the human dough demands.
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