. In brook and bayou; or, Life in the still waters . food, and they keep hands tosecure food and feet with which to travelalways in stock, in the shape of cilia. {VorticellcB.) Men go fishing with flies and worms, butthe Ciliates go fishing with these invisible this is the way they do it: They keepthese cilia falling down one after another in acircle. Round and round they go, droppingand picking themselves up again so fast thatyou can scarcely see them. This creates a whirl-pool or vortex in the water, which catches theparticles of food in its eddies, and carries themdown the whirlpo
. In brook and bayou; or, Life in the still waters . food, and they keep hands tosecure food and feet with which to travelalways in stock, in the shape of cilia. {VorticellcB.) Men go fishing with flies and worms, butthe Ciliates go fishing with these invisible this is the way they do it: They keepthese cilia falling down one after another in acircle. Round and round they go, droppingand picking themselves up again so fast thatyou can scarcely see them. This creates a whirl-pool or vortex in the water, which catches theparticles of food in its eddies, and carries themdown the whirlpool into the little animalsthroat. It is because they make this vortexthat some are called VorticellcB. These are also called bell animalcules, be-cause they are shaped like a bell, or a daintychina cup. They are the dearest little creatures in theworld—so shy, so pretty, so graceful, so charm-ing. You are not a complete, all-around boy 40 IN BROOK AND BAYOU. or girl if you are not exceedingly pleased thefirst time you see a live bell Fig. 11.— Yorticella nehulifera, showing development of individ-ual stages A to F (e and f free). CILIATA. 41 Lift a slip of nasturtium from your jar-diniere and carefully clip off a rootlet. Putit on your slidewith a drop ofwater, and youare likely to seea score of Vorti-cellcB attached tothe root: somewith their beau-tiful cups ex-panded at the end \of long, thread-like stems; somewith the stemcoiled into aspiral, restingagainst the root. They are transparent andcolorless except for the food balls; ^^^ l^.—Bell animalcule: a, ciliated disk; &, rim or lip; d, oesophagus;but you can see e, funnel; /, food; pv, pulsating vac- the cilia fanning the water to make the whirlpool, and you willnotice that when mosses or small animals arecaught in the outer waves they go around ina circle, sometimes making their escape when
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