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It may be due to the increase in the blood-pressure that accompanies reaction displacing clots which have formed in the vessels, or causing vessels to bleed which did not bleed during the operation; to the slipping of a ligature; or to the giving way of a grossly damaged portion of the vessel wall.
This Description does not only comprehend the Bowels, Bones, Tendons, Veins, Nerves and Arteries, but every Muscle and every Ligature, which is a Composition of Fibres, that are so many imperceptible Tubes or Pipes interwoven on all sides with invisible Glands or Strainers.
"I knew how it would be," he said; "I made venesection this morning, and commanded repose and sleep according to the aphorisms of Hippocrates; but if young gentlemen will neglect the ordinance of their physician, medicine will avenge herself. It is impossible that my bandage or ligature, knit by these fingers, should have started, but to avenge the neglect of the precepts of art."
No external enlargement was perceptible; but on introducing my hand into the mouth, a large polypus was found hanging from the velum palati into the pharynx, greatly obstructing the elevation of the epiglottis and the passage of food. After performing tracheotomy, to prevent suffocation, I passed a ligature around its pedicle in the way suggested by the old anatomist, Cheselden.
I am not indeed certain, that the nerve was not at the same time included in the ligature, and thus the lymphatic rendered unirritable or lifeless; but this however is certain, that it is not any quantity of any stimulus, which induces the vessels of animal bodies to revert their motions; but a certain quantity of a certain stimulus, as appears from wounds in the stomach, which do not produce vomiting; and wounds of the intestines, which do not produce the cholera morbus.
Montgomery, in an excellent paper, advances the theory, which is very plausible, that intrauterine amputations are caused by contraction of bands or membranes of organized lymph encircling the limb and producing amputation by the same process of disjunctive atrophy that the surgeons induce by ligature.
The next and last step of the operation was, to draw the edges of the wound together by tying each ligature, which procedure immediately secured the lid and held it firmly in its natural position.
Whence we must admit, first, that the blood is sent along with an impulse, and that it is urged with force below the ligature; for it escapes with force, which force it receives from the pulse and power of the heart; for the force and motion of the blood are derived from the heart alone.
"Now, the belt, quick," whispered Phil, who had followed, gently closing the door behind him; and, rolling the still insensible body over on its face, the pair bent over it and with deft fingers contrived to fasten the ankles and wrists of their victim together in such a fashion, that the more the man struggled the tighter would he draw the ligature.
And if we have, in our lives, things over which we cannot make the sign of the cross, the sooner we get rid of them the better; and if there is anything in our daily work, or in our characters, about which we are doubtful, here is a good test: does it seem to check our continual communion with God, as a ligature round the wrist might do the continual flow of the blood, or does it help us to realise His presence?
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