INFLAMMATIONS. 103 



ore, sed impletis sanguine qua? in coxa sunt venis provenissent. 1 

 The ancients not only applied leeches to the anus, but employ- 

 ed glysters acrid enough to bring away blood. Galen, speak- 

 ing of the semen thlaspi, says, c semen hoc per sedem infusum 

 sanguinolenta evacuans prodest ischiadicis ;"* and Rhazes em- 

 ployed colocynth in glysters to bring away blood for the cure of 

 ischias, and says it has succeeded in a thousand persons, and 

 only failed where the disease was so inveterate as to require 

 burning. It seems, however, it did upon occasions fail ; and 

 Cotunnius tells, that the quacks of Italy have employed the same 

 remedy with success, according to his observation and the testi- 

 mony of others, but that it sometimes failed ; and when it suc- 

 ceeded, it was a most cruel and painful operation. ' In qui- 

 bus affuit, saepe cohorruit, et segrotantium miseram doluit vi- 

 cem, quos videbat sub ista clysterum carnificina exanimes : 

 magis etiam illos qui his novis cruciatibus toleratis, morbum ni- 

 hilominus integrum retulerunt.' 



" We thought it necessary to give you these accounts ; but 

 we conclude that the salutary effects are not certain enough to 

 engage in such cruel practice." 



CHAP. XIII.. OF THE TOOTHACH, OR ODONTALGIA. 



CCCCLXXVII. I have formerly considered this disease as 

 a species of Rheumatism, to be treated upon the same principles 

 as those delivered in the preceding chapter; but now, from 

 more attentive consideration, I am led to consider the tooth - 

 ach as a distinct disease. Whilst the most of what has been 

 delivered in the last chapter proceeds upon the supposition 

 that the rheumatism depends upon a certain state of the 

 blood-vessels and of the motion of the blood in them, with- 

 out this being produced by the irritation of any acrid matter 

 applied ; I judge that, in the toothach, though there are often 

 the same circumstances in the state of the blood-vessels as in the 

 cases of rheumatism, these circumstances in toothach always arise 

 from the application of an acrid matter to the nerves of the teeth. 



CCCCLXXVIII. This disease is often no other than a pain 

 felt in a particular tooth, without any inflammatory affection be- 



