. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. PRODUCTION OF MONSTERS BY HYBRIDIZATION. 313 and form are mixed together in a single cell, than when they are all of the same kind. Whatever the primary cause of abnormal development may be, the most obvious early effect is a lowering of developmental rate and it is on this point that the similarity exists among all of the experimental results heretofore discussed. Since we are dealing primarily with rates of metabolism, we shall doubtless find, as Werber has suggested, that the morpho- genesis of monsters in teleosts is sim
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. PRODUCTION OF MONSTERS BY HYBRIDIZATION. 313 and form are mixed together in a single cell, than when they are all of the same kind. Whatever the primary cause of abnormal development may be, the most obvious early effect is a lowering of developmental rate and it is on this point that the similarity exists among all of the experimental results heretofore discussed. Since we are dealing primarily with rates of metabolism, we shall doubtless find, as Werber has suggested, that the morpho- genesis of monsters in teleosts is simply a special case of form regulation similar to those recently described and discussed by Child ('15 and '16) for sea-urchins, in which he demonstrates the effectiveness of the axial metabolic gradients as dynamic factors in the development of various types of monsters. He has been able to "control and modify development by means. of the differential action of external factors on different regions of these ; It is my belief that an application of the principles enunciated by Child serve to rationalize the results of heterogenic hybridiza- tion as well as those produced by chemicals and by low tempera- tures, and since Werber merely suggested the possibility of explaining ophthalmic anomalies by this theory and failed to apply it in any far-reaching way to the other various types of monster he was dealing with, it seems wTorth while to give the theory a thorough trial in this 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 Biolo
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