Worms, 4$ 



membranes of the stomach in other Animals, would excite nausea 

 and vomiting, but the Horse not possessing this power, his stomach 

 is pecuUarly fitted for the stimulus of such inhabitants." Now, if 

 by this last sentence, Mr. Clarke wishes merely to have it understood, 

 that the Horse does not possess the power of vomiting ; no one I be» 

 licve, will feel inclined to deny the truth of his assertion ; but if it 

 be also intended to imply, that nausea cannot be excited in his sto- 

 mach, no opinion can possibly be more untenable, or more contrary 

 to facts and every day's experience. For the uniform effect of Aloes, 

 especially of all the coarser kinds on Horses, is, to excite more or 

 less of nausea ; and in some Horses indeed, this is carried to pro- 

 digious excess, as their obstinate refusal of food, joined to extreme 

 languor and debility, sufficiently evince ; and this too, for a consi- 

 derable time, before the Physic begins to operate^ consequently, 

 before any effect of exhaustion, from the purgative quality of the 

 medicine, can have any concern in the affair. And in confirmation 

 of this fact I may add, that I remember to have witnessed repeatedly, 

 at the Veterinary College in London, tlie most extreme and dis- 

 tressing nausea, which was excited by the administration of the 

 Hyoscyamus (Henbane) on two Horses affected with glanders, which 

 were .set aside, for the purpose of trying the efficacy of this power- 

 ful simple, ifi the cure of that dreadful malady. 



The experiment failed of success ; but the palpable effects of the 

 medicine, were of the most striking kind, such as great prostration 

 of strength, copious perspiration, which might be said rather to 

 rain than to flmv from the pores of the skin, and extre7ne nctusm, 

 attended with frequent regurgitations of the stomach, so strong and 

 manifest, that its contents were repeatedly pushed to tlie upper 



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