Class I. i. 3. 1 1. OF IRRITATION. 37 



the handles of which might confift of joints to permit them to 

 bend in all directions, and thus the ftone might be broken to 

 pieces by a few trials ; or if it was a loft or fragile ftone, the re- 

 traction of the wire-how might divide it at every trial, till it be- 

 came almoit reduced to powder. A little mechanical ingenuity 

 might be necefiary in the conftruclion arid ufeof this machine- 

 ry ; but I believe it not to be impracticable, fince I read the above 

 account of Colonel Martin, though I had often before thought 

 of it with defpair of its fucceisful application. 



Lithotomy is the lad refource. Will the gaftric juice of ani- 

 mals diiTbive calculi? "Will fermenting vegetable -juices, r.^ 

 fweet-wort, or fugar and water in the act of fermentation with 

 yeaft, diflblve any kind of animal concretions r 



11. Calculus arthriticus. Gout-itoncs are formed on infla- 

 med membranes, like thofe of the kidneys above described, by the 

 too hafty abiorption of the thinner and faline parts of the mucus, 

 Similar concretions have been produced in the lungs, and even 

 in the pericardium ; and it is probable, that the oilification, as it 

 is called, of the minute arteries, which is laid to attend old age, 

 and to precede fome mortifications of the extremities, may be a 

 procefs of this kind. 



As gout-ftones lie near the furface, it is probable, that ether, 

 frequently applied in their early ftate, might render them fo li- 

 quid as to permit their re-abforption ; which the famulus of the 

 erher might at the fame time e ncourage. 



12. Rheumatifmus chronicus. Chronic rheumati fin. After the 

 acute rheumatifin fome infpiflated mucus, or material fimilarto 

 c-halk-ftones of the gout, which was fecreted on the inflamed 

 membrane, is probably left, owing to the too hafty abforptioa of 

 the thinner and faline part of it ; and by lying on the fafcia, which 

 covers fome of the mufcles, pains them, when they move and rub 

 againft it, like any extraneous material. 



The pain of the fhoulder, which attends inflammations of the 

 upper membrane of the liver, and the pains of the arms, which 

 attend afthma doloriflcum, or dropfy of the pericardium, are dif- 

 tinguifhed from the chronic rheumatiim, as in the latter the pain 

 only occurs on moving the affected mufcles. 



M. M. Warm bath, cold bath, bandage of emplaflrum de 

 minio put on tight, fo as to comprefs the part. Cover the part 

 with flannel. With oiled filk. Rub it with common oil fre- 

 quently. With ether. A blifler. A warmer climate. Ven- 

 eiec~T.ion. A grain of calomel and a grain of opium for ten fuc- 

 cefTrve nights. The Peruvian bark. 



13. Cicatrix vulnerum. The fear after wounds. In the he d- 

 ing of ulcers the matter is firft thickened by increalin^ the 



abiorption 



