CLASS III. i. 1. 12. OF VOLITION. 205 



lent matter, ftimulate the whole fyftem into greater energy of 

 aclion, and thus prevent the torpor which is the beginning of 

 fo many difeafes. In confirmation of this effect of pain on the 

 fyftem, I remember the cafe of a lady of an ingenious and ac- 

 tive mind, who, for many of the latter years of her life, was 

 perpetually fubjecl; to great pains of her head from decaying 

 teeth. When all her teeth were gone, (he became quite low 

 fpirited, and melancholy in the popular fenfe of that word, and 

 after a year or two became univerfally dropfical and died. 



M. M. Iflues in the thighs. Five grains of rhubarb, and an* 

 fixth of a grain' of emetic tartar every night for fome months, 

 with or without half a grain of opium. No ftronger liquor 

 than fmall beer or wine diluted with twice its quantity of water. 

 Since I wrote the above I have feen two cafes of hydrops tho- 

 racis attended with pain in the left arm, fo as to be miftakpi 

 for afthma dolorificum, in which femoral iflues, though applied 

 early in the difeafe, had no ef&cl. 



12. Stridor dentium. The clattering of the teeth ongoing 

 into cold water, or in the beginning of ague-fits, is an exertion 

 along with the tremblings of the (kin to relieve the pain of cold. 

 The teeth and fkin being more fenfible to cold than the more 

 internal parts, and more expofed to it, is the reafon that the 

 mufcles which ferve them, are thrown into exertion from the 

 pain of cold rather than thofe of refpiration, as in fcreaming 

 from more acute pain. Thus the poet, 



Put but your toes into cold water, 

 Your correfpondent teeth will clatter. 



PRIOR. 



In more acute pains the jaws are gnaflied together witli great 

 vehemence, infomuch that fometimes the teeth are faid to have 

 been broken by the force. See Sett. XXXIV. 1.3. In thefe 

 cafes fomething mould be offered to the patient to bite, as a 

 towel, otherwife they are liable to tear their own arms, or to 

 bite their attendants, as I have witnefled in the painful epi- 

 lepfy. 



1 3. Tetanus trifmus. Cramp. The tetanus confifts of a fix- 

 ed fpafm of almoft all the mufcles of the body ; but the trifmus, 

 or locked jaw, is the moft frequent difeafe <jf this kind. It is 

 generally believed to arife from fympathy with an injured ten- 

 don. In one cafe where it occurred in confequence of a broken 

 ancle from a fall from a horfe, it was preceded by evident hy- 

 drophobia. Amputation was advifed but not fubmittcd to ; 

 two wounds were hid into one with fciflbrs, but the patient di- 

 *-d about the feventh day from the accident. In this cafe the 



wounded 



