Minute Marvels of Nature Being Some Revelations of the Microscope Exhibited By
The book Minute Marvels of Nature Being Some Revelations of the Microscope Exhibited By was written by author Ward, John, 1832-1912 Here you can read free online of Minute Marvels of Nature Being Some Revelations of the Microscope Exhibited By book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Minute Marvels of Nature Being Some Revelations of the Microscope Exhibited By a good or bad book?
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67 shows some interesting grains, from a cultivated plant of this POLLEN, OR FLOWER-DUST 103 family called by gardeners Monarda, which possess the characteristic ridges, in this instance six in number. The common vegetable-marrow flower of the kitchen garden produces comparatively large Fig. 66. Pollen-grains with the surface reticulated in a regular hexagonal manner spherical pollen-grains, shown in Fig. 68, with eight to twelve conspicuous pores each closed with a valve. The extine is studded... with tiny spines, and when the intine makes its egress in the form of a pollen-tube it pushes through one of the pores, throwing its closing valve to either side, or removing it altogether : and even this valve will often have several spines on its sur- face. And here let us not fail to remember that we io 4 MINUTE MARVELS OF NATURE are considering but a microscopic grain of dust barely visible to the keenest eye. It is so easy, when engrossed in microscopic subjects, to forget how infinitely small is the original before us.
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