. A system of medicine, by many writers; . nd lips; and diminution of thesalivary, renal, and other glan-dular secretions. Junod didnot continue his experiments onthe general influence of rarefiedair on the human body, butturned his attention to thelocal effects, which were alsobeing studied by Neil Arnott,Murray, and Clanny, and in-vented the Junod boot and thecupping-glasses, which are stillin use. The Junod boot andSir James Murrays inctrumontare apparatus for enclosing alimb, or a part of a limb, in anair-tight vessel, and exhaustingthe atmosphere by an air-pump;the atmospheric pressure be
. A system of medicine, by many writers; . nd lips; and diminution of thesalivary, renal, and other glan-dular secretions. Junod didnot continue his experiments onthe general influence of rarefiedair on the human body, butturned his attention to thelocal effects, which were alsobeing studied by Neil Arnott,Murray, and Clanny, and in-vented the Junod boot and thecupping-glasses, which are stillin use. The Junod boot andSir James Murrays inctrumontare apparatus for enclosing alimb, or a part of a limb, in anair-tight vessel, and exhaustingthe atmosphere by an air-pump;the atmospheric pressure beingthus removed from the surfaceof the limb, blood is drawn tothe part, the vessels becomegorged, and blood is derivedfrom the internal organs. Theaction of cupping-glasses is, ofcourse, in principle. Dry cupping is useful incongestion of certain internalorgans, such as the lungs, kid-neys or brain. From the readiness of its applicationit is of value in cases whereblood is to be drawn rapidlyfrom an organ, and especially. FiO. IC. — Wtildcnburys Apparatus. 3o8 SYSTEM OF MEDICINE in hsemoptysis. I have witnessed some of the most profuse haemorrhagesfrom the lung suddenly brought to a termination by the use of dry cup-ping to the chest-wall; and I have often observed that so long as thecupping-glasses are kept on the haemorrhage has been controlled, andthat on their removal it may return. Hence the great advantage ofcupping-glasses with exhausters attached by which a partial vacuumcan be maintained. This treatment, if carefully applied, leaves no mark, and it is to bepreferred to blistering or strong poulticing in cases of gouty dispositionor where the patient has a very irritable skin. The Artificial ApiMcation of Air at a Varying Pressure to the Lungsis carried out by various apparatus, most of which are constructed bothfor rarefaction and for condensation. It is possible to apply air to the lungs in four different ways: —1. Inspiration of rarefied air. 2.
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