II^EMORRHAGIES. 239 



DCCCLI. The avoiding of motion is generally a proper 

 part of the antiphlogistic regimen ; and, in the haemoptysis, 

 nothing is more necessary than avoiding bodily exercise : but 

 some kinds of gestation, as sailing, and travelling in an easy 

 carriage on smooth roads, have often proved a remedy. 



DCCCLII. Such is the treatment I can propose for the 

 haemoptysis, considered merely as an haemorrhagy : but when, 

 in spite of all our precautions, it continues to recur, it is often 

 followed by an ulceration of the lungs, and a phthisis pulmona- 

 lis. This, therefore, I must now proceed to consider ; but, as 

 it arises also from other causes besides the haemoptysis, it must 

 be treated of with a more general view. 



CHAP. IV. OF THE PHTHISIS PULMONALIS, OR 

 CONSUMPTION OF THE LUNGS. 



SECT, I. OF THE PHENOMENA AND CAUSES OF THE PHTHISIS 



PULMONALIS. 



DCCCLIII. The Phthisis Pulmonalis I would define to be, 

 An expectoration of pus or purulent matter from the lungs, at- 

 tended with a hectic fever. 



As this is the principal species of phthisis, I shall frequently 

 in this chapter employ the general term of Phthisis, though 

 strictly meaning the Phthisis pulmonalis. 



DCCCLIV. I have met with some instances of an expectora- 

 tion of purulent matter continuing for many years, accompanied 

 with very few symptoms of hectic, and at least without any hec- 

 tic exquisitely formed : but in none of these instances were the 

 persons so entirely free from symptoms of hectic, as to form any 

 exception to the general definition. 



DCCCLV. In every instance of an expectoration of pus, I 

 presume there is an ulceration of the lungs. The late Mr. 

 de Haen is the only author that I know of who has advanced 

 another opinion, and has supposed, that pus may be formed in 

 the blood-vessels, and be from thence poured into the bronchiae. 

 Admitting his fact, I have attempted an explanation of the 



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