Chap. VII. Of a fimpJe continued Fe'uer. 29 



And here it is to be obferv'd, with refpedl Ho^- Caufes and 

 to Caufes and EiTecfts, that the fame Caufe Effeaiaretobe 

 will Ibnictimes produce different Effeds j dtfiinguijhed. 

 and the lame Effed will often proceed from different Cau- 

 fes, as in thelnftance laft mentioned ; For Cold, when its 

 Effeds are fudden and univerfal, will caufe a fudden Rare- 

 fadtion in the Blood, by obftrufting mofl of the Paffages of 

 Perfpiration ; but when it is partial or gradual, it will have 

 a different Effedt. But the different Effeds which weobferve 

 from the fame Caufe, or the fame Effed proceeding from 

 feemingly oppofite Caufes, may only arife from the different 

 degrees of Efficacy in theCaufesthemfelves, whereof we can- 

 not be exad and competent Judges, efpecially as they are ex- 

 erted on the animal Body, which is infinitely various in its 

 Compofition and Stru6lure; and moieover as thefe Caufes 

 are alfo complicated ; and therefore when we fpeak of dif- 

 ferent Effeds proceeding from the fame Caufe, and via 

 verfa, of the fame Effed proceeding from different and op- 

 pofite Caufes, we are to be underffood, not in an abftraded 

 philofophical Senfe, but as this is moft obvious to our com- 

 mon Apprehenfions of Things ; which Difference we fhall 

 endeavour to account for in the moft rational Way we are 

 able, and that as often as we (hall find Occafion. 



But, Lajlly, If the Affedions of Horfes can be enough 

 permanent and lafting, fo as to bring on Difeafes, accord- 

 ing to fome Writers, fuch a Fever, .as this we are treating 

 of, may take its Beginning from Rage and Fury, fince no- 

 thing contributes more to the Rarefadion of the Blood, 

 and the Increafe of its Motion. And therefore thofe Horfes 

 who have felt the Pleafures of Love, and have been after- 

 wards reftrained from Copulation, but yet have had Mares 

 frequently expofed to them, muft be moft in Danger from 

 fuch Caufes. 



But we (hall now proceed to the Sign?, cjj^^ Si?m of a 

 which in a fimple and continued Fever are nmpkfenjer. 

 violent Heat and Fulncfs of the VeffelSjWhich 

 will even appear to the Eye ; a Beating of the Heart and 

 Flanks without Intermiffion ; a Drynefs on the Roof of the 

 Mouth and Palate, withaRoughnefs on the Tongue ; con- 

 tinual Watchfulnefs and Reftlefnefs, infomuch that if a 

 Horfe befeized in the Field, he will be perpetually moving 

 from Place to Place, gomg often to the Water, but not being 

 able to drink j he will fmell at the Ground in many Places 

 without Feeding, bui difcovering a great Delicacy from the 



Want 



