THE ACTION OF ETHER ON PROTOPLASM

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Abstract
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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