Evenings At the Microscope : Or, Researches Among the Minuter Organs And Forms of Animal Life
The book Evenings At the Microscope : Or, Researches Among the Minuter Organs And Forms of Animal Life was written by author Philip Henry Gosse Here you can read free online of Evenings At the Microscope : Or, Researches Among the Minuter Organs And Forms of Animal Life book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Evenings At the Microscope : Or, Researches Among the Minuter Organs And Forms of Animal Life a good or bad book?
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We see, then, extending from various points of the shelly case of the Urchin, and reaching to twice or thrice the length of the longest spines, slender pellucid tubes, slightly tapering towards their free extremity, which then abruptly dilates into a hemispherical knob, with a flat end. These very delicate organs are extended or contracted at the will of the animal, and turned in every direction, waved hither and thither, and evidently have the faculty of adhering very firmly by their dilated t...ips to any object to which they are applied. So much we can discern as we watch the creature dis- porting in this vessel of water ; but we will now endeavour to learn a little more about its structure and economy. Selecting for this purpose a sucker which is extended to great length, I snip it across with a pair of sharp scissors, as near the base as I can. Mark the result. The terminal SEA-URCHINS AND SEA-CTJOUMBERS. 289 SUCKER OF URCHIN. knob which was attached to the bottom of the saucer maintains its hold, but the tube has suddenly shrunk up to a sixth part of its former length, ex- changing at the same time its smooth slen- derness and translu- cency for a wrinkled semi-opacity.
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