Aldrich, Thomas Bailey, 1836-1907 · Boston, CT : Hall and Locke · leaf 409
paralyze the creatures on which it feeds, for at thebase of each thread there is a poison gland. In the larger Sertularia the whole branched tree isconnected by jelly threads, running through the stem,and all the thousands of mouths are spread out in thewater. One large form called Sertularia… … the class in a diagram, but you will see it under thefourth microscope by and by. I had great troublein finding it yesterday, though I know its haunts uponthe green weed, for it is so minute and transparentthat even when the weed is in a trough a magnifying-glass will scarcely detect it. And I must…
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