Class I. i. i. 2, OF IRRITATION. fcf 



al arterial ftrength cannot be determined by the touch, till the 

 cold part of the paroxyfm ceafes. This determination is fome- 

 times attended with difficulty ; as ftrong and weak are only com- 

 parative cie grees o£the greater or iefs refiftance of the pulfation 

 of the artery to the compreiTion of the finger. But the greater 

 or lefs frequency of the pulfations affords a collateral evidence 

 in thofe cafes, where the degree of ftrength is not very diftin- 

 guiihable, which may afHft our judgment concerning it. Since 

 a moderately ftrong pulfe, when the patient is in a recumbent 

 pofture, and not hurried in mind, feldom exceeds 120 ftrokesin 

 a minute •, whereas a weak one often exceeds 130 in a recum- 

 bent pofture, and 150 in an erect one, in thofe fevers, which 

 are termed nervous or putrid. See Seel. XII. 1. 4. 



The increafed frequency of the puifatien of the heart and ar- 

 teries, as it is cccaiioned either by excefs or defect of ftimulus, or 

 of fenforial power, exifts both in the cold and hot fits of fever ; 

 but when the cold fit ceafes, and the pulfe becomes ftrong and 

 full as well as quick, in confequence of the increafed irritability 

 of the heart and arteries, it conftitutes the irritative fever, or fy- 

 nocha. It is attended with confiderable heat during the parox- 

 yfm, and generally terminates in a quarter of a lunation, without 

 any dill urban ce of the faculties of the mind. See Clafs IV. 1. 1.8. 



M. M. Venefeciion. Emetics. Cathartics. Cool the patient 

 in the hot fit, and warm him in the cold cue. Reft. Torpentia. 



2. Ebrietas. Drunkennefs. By the if imulus of wine or opi- 

 um the whole arterial fyftem, as well as every other part of the 

 moving fyftem, is excited into increafed action. All thefe fe- 

 cretions, and with them the production of fenforial power itfelf 

 in the brain, feem to be for a time increafed, with an additional 

 quantity of heat, and of pleafurable fenfation. See Seel:. XXL 

 on this fubjecf. This explains, why at the commencement of 

 the warm paroxyfm of fome fevers the patient is in greater fpir- 

 its, or vivacity ; becaufe, as in drunkennefs, tlie irritative motions 

 are all increafed, and a greater production of fenfation is the con- 

 fequence, which, when in a certain degree, is pleafurable, as in 

 the diurnal fever of weak people. Sect. XXXVI. 3. 1. 



3. Hzmorrhagia arteriofa. Arterial haemorrhage. Bleeding 

 with a quick, ftrong, and full pulfe. The haemorrhages from 

 the lungs, and from the nofe, are the moft frequent of thefe j but 

 it fometimes happens, that a fmall artery but half divided, or the 

 puncture of a leech, will continue to bleed pertinacioufly. 



M. M. Venefection. Cathartic with calomel. Divide the 

 wounded artery. Bind fponge on the puncture^ If coffee or 

 charcoal, internally ? If air, with lefs oxygen ? 



4. Hamoptoe arteriofa. Spitting of arterial blood. Blood fpit 



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