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Breaking off with a file the exit-tube at the point where the neck began to narrow off, we took some of the deposit from the bottom by means of a long straight piece of tubing, in order to bring it under microscopical examination. A crowd of these long vibrios were to be seen creeping slowly along, with a sinuous movement, showing three, four, or even five flexures.
When it was evident that the contents of the flask were perfectly inert, we impregnated them rapidly, as follows: all the liquid contained in the exit-tube was removed by means of a fine caoutchouc tube, and replaced by about 1 c. This operation lasted only a few minutes. The exit-tube was again plunged under mercury.
Suited figures on the surface wrestled with its flexible exit-tube against the storm, fighting to couple it to the lock of the Richardson dome. The exit-tube moved rhythmically until the Scout Ball inched away, drawing it taut. Pumps whirred. The suited figures entered the forward lock of the Scout Ball. Inside, General Shorter divested himself of the helmet.
The impregnation took place on February 10th, and on March 15th the liquid was nearly saturated. The bubbles then began to lodge in the bent part of the exit-tube, at the top of the flask. A glass measuring-tube containing mercury was now placed with its open end over the point of the exit-tube under the mercury in the trough, so that no bubble might escape.
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