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Biol Bull 66: 257-263. (June 1934)
© 1934 Marine Biological Laboratory
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THE HYALINE ZONE OF THE CENTRIFUGED EGG OF CUMINGIA

DONALD P. COSTELLO 1

1 From the Zoölogy Laboratory, University of Pennsylvania, and the Marine Biological Laboratory, Woods Hole, Mass.

1. The zones of stratification of the centrifuged egg of Cumingia have been redescribed.

2. The relations of the presence of granules in the "broad clear zone" to previous work on (a) absolute protoplasmic viscosity, (b) the surface precipitation reaction, and (c) embryonic localization have been discussed.






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Copyright © 1934 by the Marine Biological Laboratory.