Experiments With Plants
Experiments With Plants
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In our eReader you can find the full English version of the book. Read Experiments With Plants 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 Experiments With Plants
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88 11. 9 30. 1 72. 71 24. 21 41. 91 78. 1 142. 1 After soaking fifteen minutes, the weight of the sealed lot was 32. 34 grams; subtract from this the weight before soaking (32), which gives the gain (0. 34 grams) ; divide this by the original weight be- fore treating with rubber (31 grams) to get the gain in per cent. In this case an area on the unsealed seeds was covered with rubber so as to equal the amount covered on the sealed seeds.
THIS AWAKENING OF TEE SEED 13 The experiment may be repea...ted in a different form by placing the seeds in moist sawdust instead of in water. Care must be taken that none of the rubber is removed in manipulating the seeds.
This experiment requires a balance. If you have none at hand you should make one for yourself. The 17. A home-made balance constructed of ximbrella wire; it can be made sensitive to a tenth of a gram.
arms of the balance should be of equal length. Why ? Try the effect of both equal and unequal arms. The pans should be attached at equal distances from the pivot.
What to read after Experiments With Plants?
You can find similar books in the "Read Also" column, or choose other free books by W J V Winthrop John Van Leuven Osterhout to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
88 11. 9 30. 1 72. 71 24. 21 41. 91 78. 1 142. 1 After soaking fifteen minutes, the weight of the sealed lot was 32. 34 grams; subtract from this the weight before soaking (32), which gives the gain (0. 34 grams) ; divide this by the original weight be- fore treating with rubber (31 grams) to get the gain in per cent. In this case an area on the unsealed seeds was covered with rubber so as to equal the amount covered on the sealed seeds.
THIS AWAKENING OF TEE SEED 13 The experiment may be repea...ted in a different form by placing the seeds in moist sawdust instead of in water. Care must be taken that none of the rubber is removed in manipulating the seeds.
This experiment requires a balance. If you have none at hand you should make one for yourself. The 17. A home-made balance constructed of ximbrella wire; it can be made sensitive to a tenth of a gram.
arms of the balance should be of equal length. Why ? Try the effect of both equal and unequal arms. The pans should be attached at equal distances from the pivot.
What to read after Experiments With Plants?
You can find similar books in the "Read Also" column, or choose other free books by W J V Winthrop John Van Leuven Osterhout to read onlineMoreLess
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