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Then the friction on the neck of the shaft is made one half less by being divided between the two bearings, and the short prolongation of the shaft beyond the journal is convenient for the attachment of the eccentrics to work the valves. Q. Will you enumerate some of the principal dimensions of this engine?
Anatomists and histologists have more perfectly demonstrated the muscle fibers of the heart and the structure at and around the valves; the physiologic chemists have shown more clearly the action of drugs, metals and organic solutions on the heart; and the physiologists and clinicians with laboratory facilities have demonstrated by various new apparatus the action of the heart and the circulatory power under various conditions.
The steam which passes through the automatic stage valves and is admitted to the extra set of nozzles above the second-stage wheel acts upon this wheel just the same as the steam which passes through the regular second-stage nozzles; i.e., all the steam which goes through the machine tends to hasten its speed, or, more accurately, does work and maintains the speed of the machine.
In this collection there was an adult heart in which the foremen ovale remained open until the age of thirty-seven; there were but two pulmonary valves; there was another heart showing a large patent foramen ovale from a man of forty-six; and there was a septum ventriculorum of an adult heart from a woman of sixty-three, who died of carcinoma of the breast, in which the foremen ovale was still open and would admit the fore-finger.
Again, assume the installation to be running under the initial conditions, with the atmospheric valve D and all remaining valves except H closed. Suppose the vacuum again fell to zero from a similar cause, and, further, suppose the atmospheric valve D failed to operate automatically.
Beside this were control levers. On the steam chest lay a half-smoked cigarette, as if the engineer had been called suddenly away from his post. Madden turned the throttle, pushed the levers back and forth, and listened to clicking sounds high up in the complexity of the engines. He knew that every lever threw long systems of vents and valves in and out of play.
This is the most frequent form of valvular disease of the heart, and is due to a shortening or thickening of the valves, or to some adhesion which does not permit the valve, to close properly, and the blood consequently regurgitates from the left ventricle into the left auricle during the contraction of the ventricle.
"At Madame La Blond's we were instructed in all the sciences; in the nature of valves; the specific gravity of bodies; the astonishing properties of magnetic steel; and how many thousand miles the sun was from the earth." "And perhaps you were told, by what means Archimedes burned the ships of Marcellus, at the siege of Syracuse?"
We gathered about a bushel of these, built a fire of dead mangrove wood, which is the best of fuel, and when we had a good bed of coals threw on the oysters. The heat, at the same time that it roasted them, obliged them to open their valves, so that it was both easy and pleasant to take them on the half shell.
The necessary amendments would not find their way through all the hoppers and tubes and valves of the enormous mill erected within the Constitution, unless forced onward by popular agitation, and by popular agitation widespread, determined, vehement, even alarming.
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