Manual of Science for Teachers Containing Answers to the Practical Questions And Problems in the Author's Scientific Textbooks
Manual of Science for Teachers Containing Answers to the Practical Questions And Problems in the Author's Scientific Textbooks
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In our eReader you can find the full English version of the book. Read Manual of Science for Teachers Containing Answers to the Practical Questions And Problems in the Author's Scientific Textbooks 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 Manual of Science for Teachers Containing Answers to the Practical Questions And Problems in the Author's Scientific Textbooks
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To quickly assess the difficulty of the text, read a short excerpt:
It is a self-regulating, self-subsisting establishment, and is con- structed on the most i)erf e^t principles of chemical economy.
" Before this truth of compensation between animals and plants was discovered, many attempts were made to keep fish in small glass globes.
As they soon exhausted the oxygen, and impregnated the water with car- bonic acid, it was necessary to change it daily. Finally, but a few years since, it was discovered that plants evolve oxygen and consume carbonic acid in the ...water as well as in the air. Starting out with this idea, about the year 1850, a Mr. Warrington, an Englishman, set about breeding fish and moUusks in tanks by the aid of marine plants. He succeeded admi- rably for a few days, but after a time a change came over his little world.
"Without apparent reason, the water became suddenly impure, and the fish died. Here was a new agency at work. With the aid of a microscope, Mr.
Warrington explored his tank for the i)oison that was evidently latent there.
What to read after Manual of Science for Teachers Containing Answers to the Practical Questions And Problems in the Author's Scientific Textbooks?
You can find similar books in the "Read Also" column, or choose other free books by Steele, Joel Dorman, 1836-1886 to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
It is a self-regulating, self-subsisting establishment, and is con- structed on the most i)erf e^t principles of chemical economy.
" Before this truth of compensation between animals and plants was discovered, many attempts were made to keep fish in small glass globes.
As they soon exhausted the oxygen, and impregnated the water with car- bonic acid, it was necessary to change it daily. Finally, but a few years since, it was discovered that plants evolve oxygen and consume carbonic acid in the ...water as well as in the air. Starting out with this idea, about the year 1850, a Mr. Warrington, an Englishman, set about breeding fish and moUusks in tanks by the aid of marine plants. He succeeded admi- rably for a few days, but after a time a change came over his little world.
"Without apparent reason, the water became suddenly impure, and the fish died. Here was a new agency at work. With the aid of a microscope, Mr.
Warrington explored his tank for the i)oison that was evidently latent there.
What to read after Manual of Science for Teachers Containing Answers to the Practical Questions And Problems in the Author's Scientific Textbooks?
You can find similar books in the "Read Also" column, or choose other free books by Steele, Joel Dorman, 1836-1886 to read onlineMoreLess
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