. Evenings at the microscope : or, Researches among the minuter organs and forms of animal life . Zoology; Microscopy; Microscopes. 328 EVENINGS AT THE MICEOSCOPE. with a quivering, jerking motion ; this is doubtless the nutrient fluid conveying the products of digestion to every part of the common structure. Where the branches issue from the angles of the stem, the medulla, and consequent- ly the horny sheath, is di- lated into a knob ; immedi- ately above this there is a joint-like constriction in the tube, and the branch itself is insected by four or five such constrictions, so as to form a
. Evenings at the microscope : or, Researches among the minuter organs and forms of animal life . Zoology; Microscopy; Microscopes. 328 EVENINGS AT THE MICEOSCOPE. with a quivering, jerking motion ; this is doubtless the nutrient fluid conveying the products of digestion to every part of the common structure. Where the branches issue from the angles of the stem, the medulla, and consequent- ly the horny sheath, is di- lated into a knob ; immedi- ately above this there is a joint-like constriction in the tube, and the branch itself is insected by four or five such constrictions, so as to form as many rings. Its ex- tremity then expands into an elegant cup, or vase, of ex- treme tenuity and trans- parency, shaped like a wine- glass, with the rim undivided, but so thin and subtle as to be seen with the greatest difficulty. These cups, or cells, are each the proper habitation of a polype, which is nothing else but the termination (in this direction) of the living, growing, vascular pith. The latter becomes exceedingly attenuated in order to pass through a very narrow orifice in the centre of a horny diaphragm, or sort of false bottom, which passes across the bottom of each cell. It then dilates into a soft, contractile animal, whose body—but look for yourself; for here, full in the field of the micro- scope, is one expanding in the highest vigour and beauty. It is a long trumpet-shaped body of granular flesh, the mouth of which just reaches the brim of the cup, over which it spreads on all sides. From its margin spring some eighteen or twenty tentacles—the exact number. 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. London : Society for Promoting Christian Knowledge
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