. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. RHYTHMS AND ENDOMIXIS IX PARAM/ECIUM AURELIA. 55 this pedigreed culture was isolated on January 7, 1915, from material supplied by Dr. Florence Peebles from Bryn Mawr, Pa. The culture was discontinued at the 65Oth generation on February 8, 1916. Fig. 3 shows the relationship of rhythms and endo- mixis during the first eighty-five days of the culture when the animals were being examined for the reorganization process- The results fully substantiate those obtained from previous races. The last inter-rhythm period shown in the
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. RHYTHMS AND ENDOMIXIS IX PARAM/ECIUM AURELIA. 55 this pedigreed culture was isolated on January 7, 1915, from material supplied by Dr. Florence Peebles from Bryn Mawr, Pa. The culture was discontinued at the 65Oth generation on February 8, 1916. Fig. 3 shows the relationship of rhythms and endo- mixis during the first eighty-five days of the culture when the animals were being examined for the reorganization process- The results fully substantiate those obtained from previous races. The last inter-rhythm period shown in the diagram is apparently longer than usual—though it is possible that endomixis was overlooked about the I5th five-day period. Race V. (Oxford Race.}—Culture started, from material se- cured at Oxford,, Ohio, on July 16, 1915, and discontinued on August 7, 1916, at the i,oooth generation. The division rate of the culture is shown in Fig. 4 for the first 44 five-day periods of. its life. During this time nine rhythms occurred at each of which endomixis wras observed. It is hoped that readers who may possess doubts concerning rhythms and endomixis will carefully consider this graph. Race VI. (Woods Hole Race.)—This race was obtained by Dr. G. A. Baitsell at Woods Hole, Mass., and its pedigreed culture was begun on August n, 1915, and discontinued on Jan- uary 14, 1916, at the 305th generation. Fig. 5 gives the graph of the division rate of this culture throughout its 1 The division rate is plotted consistently one quarter of a division per day too fast for every five-day period, owing to a draughtsman's error. An E should be inserted in the first 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, M
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
