it/2. DISEASES Class III. i. i. 10. 



lepfies, may be occafioned by pain in almoft any remote part of 

 the fyftem. But in fome of the adult patients in this difeafe, as 

 in many epilepfies, I have fufpe&ed the remote caufe to be a 

 pain of the liver, or of the biliary ducts. 



The afthmas, which have been induced in confequence of the 

 recefjs of eruptions, efpecially of the leprous kind, countenance 

 this opinion. One lady I knew, who for many years laboured 

 under an afthma, which ceafed on her being afflicted with pain, 

 fwelling, and diftortion of tome of her large joints, which were 

 efleemed gouty, but perhaps erroneoufly. And a young man, 

 whom I faw yefterday, was feized with aflhma on the retrocef- 

 fion, or ceafmg of eruptions on his face. 



The convulfive afthma, as well as the hydropic, is more lia- 

 ble to return in hot weather j which may be occafioned by the 

 lefs quantity of oxygen exifting in a given quantity of warm air, 

 than of cold, which can be taken into the lungs at one infpira- 

 tion. They are both moft liable to occur after the firft fleep, 

 which is therefore a general criterion of afthma. The caufe of 

 this is explained in Sect. XVIII. 15. and applies to both of 

 them, as our fenfibility to internal uneafy fenfation increafes 

 during fleep. 



When children are gaining teeth, long before they appear, 

 the pain of the gums often induces convulfions. This pain is 

 relieved in fome by fobbing *md fcreaming j but in others a la- 

 borious refpiration is exerted to relieve the pain ; and this con- 

 stitutes the true afthma convulfivum. In other children again 

 general convulfions, or epileptic paroxyfms, are induced for this 

 purpofe *, which, like other epilepfies, become eftablifhed by 

 habit, and recur before the irritation has time to produce the 

 painful fenfation, which originally caufed them. 



The afthma convulfivum is alfo fometimes induced by worms, 

 or by acidity in the ftomachs of children, and by other painful 

 fenfations in adults ; in whom it is generally called nervous 

 afthma, and is often joined with other epileptic fymptoms. 



This afthma is diftinguifhed from the peripneumony, and 

 from the croup, by the prefence of fever in the two latter. It 

 is diftinguifhed from the humoral afthma, as in that the patients 

 are more liable to run to the cold air for relief, are more fubject 

 to cold extremities, and experience the returns of it more fre- 

 quently after their rirft ileep. It is diftinguifhed from the hy- 

 dropfc thoracis, as that ha-, no intervals, and the patient fits con- 

 ftantiy upright, and the breath is colder ; and, where the peri- 

 cardium is affected, the piilfe is quick and unequal. See Hy- 

 drops Thoracis, I. 2. 3. 14. 



M. M. Venfeclicn once. A cathartic with calomel once. 



Opium. 



