Natural History Studies
Natural History Studies
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In our eReader you can find the full English version of the book. Read Natural History Studies Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Natural History Studies
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65 E NATURAL HISTORY STUDIES To keep a famous inland fish-pond from becoming barren, recourse was had to an interesting device. Some boxes of mud and manure were placed at the sides, yet so that none of the manure got into the water. Bacteria, the microscopic minions of all putrefaction, began to work in the mud and manure, making food for minute, but not quite so minute, animalcules called Infusorians, which mul- tiply so rapidly that there may be a million from one in a week's time. A living ...cataract of these Infu- sorians overflowed from box to pond, and " water- fleas, " which are really tiny Crustaceans about the size of pins' heads, gathered at the foot of the fall, devoured the animalcules, and multiplied exceed- ingly. But the water-fleas are eaten by fishes, so that the fishes were kept in good cheer. As fish- flesh is said to be good for the brain, we have traced the links of a chain connecting mud and clear thinking ! What was in the mud became part and parcel of the Infusorians, which became part of the Crustaceans, which became part of the fishes, which became part of the man.
What to read after Natural History Studies?
You can find similar books in the "Read Also" column, or choose other free books by J Arthur John Arthur Thomson to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
65 E NATURAL HISTORY STUDIES To keep a famous inland fish-pond from becoming barren, recourse was had to an interesting device. Some boxes of mud and manure were placed at the sides, yet so that none of the manure got into the water. Bacteria, the microscopic minions of all putrefaction, began to work in the mud and manure, making food for minute, but not quite so minute, animalcules called Infusorians, which mul- tiply so rapidly that there may be a million from one in a week's time. A living ...cataract of these Infu- sorians overflowed from box to pond, and " water- fleas, " which are really tiny Crustaceans about the size of pins' heads, gathered at the foot of the fall, devoured the animalcules, and multiplied exceed- ingly. But the water-fleas are eaten by fishes, so that the fishes were kept in good cheer. As fish- flesh is said to be good for the brain, we have traced the links of a chain connecting mud and clear thinking ! What was in the mud became part and parcel of the Infusorians, which became part of the Crustaceans, which became part of the fishes, which became part of the man.
What to read after Natural History Studies?
You can find similar books in the "Read Also" column, or choose other free books by J Arthur John Arthur Thomson to read onlineMoreLess
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