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Biol Bull 49: 461-476. (December 1925)
© 1925 Marine Biological Laboratory
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THE ACTION OF ETHER ON PROTOPLASM

L. V. HEILBRUNN

1. Water enters etherized muscle less rapidly than normal muscle, but this does not necessarily imply a change in the properties of the plasma membrane following etherization.

2. Ether does not lower the permeability of sea-urchin eggs to water.

3. Dilute ether solutions cause a very sharp decrease in the viscosity of sea-urchin egg protoplasm, both in fertilized and unfertilized eggs. Rough quantitative measurements of this decrease are given.

4. Slightly more concentrated solutions of ether produce a coagulation which is irreversible.

5. The divergent results of Chambers find a simple explanation.






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Copyright © 1925 by the Marine Biological Laboratory.