. The elementary nervous system . t closed; the oscula of the other OSCUlum WES again fully Open. Oil feT/L^sho^nVy^hra^rows: cutting off the current the osculum closed in six minutes. It is note- worthy that during the time of these experiments the oscula in the immediate neighborhood of the one tested showed no changes in reference to those observed in the individual within the tube, but they remained for the most part continuously open in the general cur- rent of seawater. The next question that naturally suggested itself was how much of a finger must be exposed to a current of sea- water t
. The elementary nervous system . t closed; the oscula of the other OSCUlum WES again fully Open. Oil feT/L^sho^nVy^hra^rows: cutting off the current the osculum closed in six minutes. It is note- worthy that during the time of these experiments the oscula in the immediate neighborhood of the one tested showed no changes in reference to those observed in the individual within the tube, but they remained for the most part continuously open in the general cur- rent of seawater. The next question that naturally suggested itself was how much of a finger must be exposed to a current of sea- water to induce the opening of its osculum. To test this, ;i iclass tube was made to cover the distal half of a finger, leaving the proximal half exposed to the general current. To check the eddying of the current up into the tube a
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Keywords: ., bookpublisherphiladelphialondonjblipp, booksubjectnervoussystem
