aoa TREATMENT OF 



opinion. These bristles, or bairs, are liable to be 

 injured, probably by age, and more certainly by 

 becoming damp and musty. Whatever destroys 

 their strength and elasticity, destroys the proper- 

 ties on which their activity and usefulness de- 

 prncl. 



Dr. Fisher, as quoted, p. 253, says, *' The tere- 

 tes (lumbricoides) resemble the common earth- 

 worm generally ; but the difference is sufficient to 

 prove tbem a different species. In some cases they 

 are found to be very numerous ; one thousand 

 and nine were discharged from a child in the 

 space of ten or twelve days. In common cases 

 the amalgam of tin never fails to kill them. I have 

 combined the tin and quicksilver in various propor- 

 tions, and added different substances to render the 

 amalgam pulverable. The following formula is 

 considered the best ; — to five parts of melted tin, add 

 two parts of quicksilver ; mix them, and add one 

 part of testaceous powder ; keep the amalgam melt- 

 ed, and rub till the smallest part of it disappears ; 

 when the mixture is cold, a little additional livigat- 

 ing will reduce it to an impalpable powder. Let 

 three or four drachm« of this powder be divided 

 into twelve doses, two of which arc to be given in 



a day. 



This quantity will generally be sufficient for a 

 child ; hut sometimes six, or even twelve addition- 

 al doses will be required. If we wish to keep the 

 bowels more open, a little calomel may be added. 

 Should the symptoms be very severe, a large dose 



