Chap. XLIX. Of the Mange. i % 5 



made of Brimftone, Orpiment, and unflak'd Lime ; the 

 Ointment is no other than the yellow Ar/enick, but obtains 

 the Name o^ Orpiment from the Painters. Corrofive Subli- 

 mate is a Preparation of Mercury, which borrows its cau- 

 ftick and burning Quahty from the y^qua fortis which en- 

 ters into its Compofition. Any of thefe us'd dry will yet be 

 of more fudden Efficacy ; unflack' Lime, or the capital Soap 

 Lees evaporated to a Drynefs, will have the fame EfFe6l ; or 

 the Lunar Cauftick, fo much in the Acquaintance of Sur- 

 geons ; and, in fine, all things that are plentifully faturated 

 with Fire But in the Farcin they ought to be guarded 

 and made more moderate, as in the Manner above pre- 

 fcribed. Neither is the adual Cautery or Fire to be apply'd 

 otherwife than as an Auxiliary, and to aflift in other Inten- 

 tions, viz. to keep down a luxuriant and frefli Growth of 

 proud Flefh, after the Knife, or the more gentle Caufticks. 

 But the Reader may turn to the latter End of this Treatife, 

 where the Nature and Ufe of that Operation is fhewn. 



CHAP. XLIX. 



Of the Mange. 



AS the Diftemper we have treated of in the preceeding 

 Chapter has its chief Seat in the Skin and fiefhy Pannicle, 

 that which comes under our prefent Confideration is yet more 

 fuperficial, being principally feated on the Surface of the Skin 

 only and Scarfskin ; and therefore as the Mange is thus cir- 

 cumftanc'd, it is feldom attended with Pain and Inflamma- 

 tion, but only with an Itching, that thin membranous Tegu- 

 ment not being indu'd with any tender Senfation, as has b:ea 

 obferv'd in the Beginning of the Anatomical Part; but yet if 

 a Horfe has been ill manag'd, or that the Diftemper has been 

 of a long ftanding, it is then apt to degenerate from what 

 it was at firft, and taking deeper Root, it caufes Boils and 

 Sores, which often have a very ill Tendency. 



The Caufe is from an over-great Quantity 7bs Caufe. 

 of vifcid Scrum bred in the Bodies of Horfes 

 by corrupt and foul Feeding, as the eating of Grains, a too 

 frequent ufe of hot Mafhes, Want of due Exercife, and the 

 Want of good Currying, efpecially to a Horl'e that has been 

 ufed to it ; for by that Means the Pores become obftrudled, 

 and the Serofities of the Blood are thereby accumulated in 

 the fmall Veflels of the Skin. Sometimes it proceeds 

 from Want of Food and due Nourifliment, whereby the 

 iBlood being depauperated, is render'd unable to reach 

 U I the 



