HJEMORRHAGIES. 263 



DCCCCXIII. A third means of avoiding the inflammation 

 of the tubercles of the lungs, consists in diminishing the deter- 

 mination of the blood to the lungs, by supporting and increas- 

 ing the determination to the surface of the body ; which is to 

 be chiefly and most safely done by warm clothing, and the fre- 

 quent use of the exercises of gestation. 



DCCCCXIV. Every mode of gestation has been found of 

 use in phthisical cases; but riding on horseback, as being 

 accompanied with a great deal of bodily exercise, is less safe in 

 persons liable to an haemoptysis. 



" Riding requires attention to the circumstance, if spitting 

 of blood has occurred in consequence of a plethoric state. It is 

 true that in such persons riding may be hazardous ; and I have, 

 in consequence of the agitation of riding, seen the spitting of 

 blood renewed, and in some persons who bore riding at certain 

 times, in other circumstances, when the vessels were fuller, the 

 riding was unluckily applied. But, on the other hand, I think 

 I have seen certain cures performed by means of riding : I 

 have known persons who spit blood at every cough they gave, 

 and yet, after they had been for some hours on horseback, not 

 a drop would appear in their spitting. I have had very 

 singular proofs of the same in gestation : in some instances 

 violent jolts of the carriage renewed the haemoptysis, but it 

 disappeared entirely after a journey of a day or two." 



Travelling in a carriage, unless upon very smooth roads, 

 may also be of doubtful effect ; and all the modes of gestation 

 that are employed on land, may fall short of the effects expect- 

 ed from them, because they cannot be rendered sufficiently 

 constant ; and therefore it is, that sailing, of all other modes of 

 gestation, is the most effectual in pneumonic cases, as being 

 both the smoothest and most constant. 



It has been imagined, that some benefit is derived from the 

 state of the atmosphere upon the sea ; but I cannot find, that 

 any impregnation of this which can be supposed to take place, 

 can be of service to phthisical persons. It is however probable, 

 that frequently some benefit may be derived from the more 

 moderate temperature and greater purity of the air upon the 

 sea. 



DCCCCXV. In order to take off any inflammatory deter- 



