. Evenings at the microscope : or, researches among the minuter organs and forms of animal life. Microscopy; Microscopes; Medical microscopy. JELLY-FISHES. 367 of deep purple. These collections of coloured granules, which I have already explained to be rudimentary eyes, have a very charming effect, and give a beautiful appearance to the little crea- ture, as if its translucent crystalline head were encircled with a coronet of gems. You shall see them, however, un- der circumstances which will make inAirMANTiAs. them appear more lustrously gemmeous still. Come with me, and I will carry the glas


. Evenings at the microscope : or, researches among the minuter organs and forms of animal life. Microscopy; Microscopes; Medical microscopy. JELLY-FISHES. 367 of deep purple. These collections of coloured granules, which I have already explained to be rudimentary eyes, have a very charming effect, and give a beautiful appearance to the little crea- ture, as if its translucent crystalline head were encircled with a coronet of gems. You shall see them, however, un- der circumstances which will make inAirMANTiAs. them appear more lustrously gemmeous still. Come with me, and I will carry the glass containing our little Thawnantias into the next room. You need not bring the candle, or what I am going to show you will be quite invisible. Take hold of this pencil, and having felt for the glass, disturb the water with it. Ha! what a circle of tiny lamps flashes out! You struck the body of the ThauTuantias with the pencil, and instantly, under the stimulus of alarm, every purple eye became a phosphoric flame. Touch it again; again the crown of light flashes out, but less brilliantly; and each tiny lamp after sparkling tremulously for a moment, wanes, and the whole gradually, but quickly, go out, and all is dark again. But it is tired of lighting up for nothing—or its gas is exhausted—or it is become used to the pencil and is not alarmed—or, at all events, you may knock it, and push it, but it refuses to shine any more. Back with it then to the microscope, and let us see if it pos- sesses any other points of interest for us there. Yes: we have not exhausted the organs of the margin yet. Between the tentacles which spring from bulbs there are a good many more, far more. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Gosse, Philip Henry, 1810-1888. New York, D. Appleton


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Keywords: ., bookcentury1800, booksubjectmicroscopes, booksubjectmicroscopy