. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 262 JOHN W. SCOTT. draw in toward the membrane blood cells from a considerable distance; these cells therefore hit the cilia with some force, but the major stroke of the cilia is strong enough to bounce them off again, usually driving them away five to ten times their own diameter, and frequently beyond the limits of further attraction. However they may bounce two, three, or four times, that is,. FIG. 2. To show a portion of the fimbriated membrane found at the inner end of a post-diaphragmatic nephridium of Amphitrite. Not
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 262 JOHN W. SCOTT. draw in toward the membrane blood cells from a considerable distance; these cells therefore hit the cilia with some force, but the major stroke of the cilia is strong enough to bounce them off again, usually driving them away five to ten times their own diameter, and frequently beyond the limits of further attraction. However they may bounce two, three, or four times, that is,. FIG. 2. To show a portion of the fimbriated membrane found at the inner end of a post-diaphragmatic nephridium of Amphitrite. Not so much magnified as Fig. i. The membrane is undulating at a, and folding to form a groove at b; at c is the deep main groove leading into the nephridial sac; at d, are pillar-like projec- tions overhanging the main groove. For further explanation see text. until they reach the region of the groove shown at b, Fig. 2; then the cilia on the sides carry them up, out, and away. Only in very rare instances do blood cells ever reach the main groove; sometimes they follow the eddy near a mature egg, but they are. 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 Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
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