OF THE EYES. 375 



ibme few remarks upon the cruelty and incon- 

 iiftency of ancient pradice ; fubmitting fjch 

 concluiions and inferences as will naturally 

 arife to thofe readers who recur to this work 

 for information, aniufement, or to fink a te- 

 dious hour in the lerious talk of criticifm. 

 It has been before mentioned how exquiiitely 

 fenfible this organ is of irritation ; and it muft 

 be admitted, no arcrument whatever can un- 

 dergo a more candid difcuflion than in an ap- 

 plication to our own feelings, inconveniencies, 

 and difquietudes. To the fenfations there- 

 fore of every individual I fubmit the reflec- 

 tion, and venture to believe there are none 

 who may honour me with a perufal of thefe 

 pages but will, by a momentary retrofpedion, 

 communicate to memory the recollection of 

 fome acute pain, or excruciating an^;^ifli, he 

 mud, in all probability, have experinced from 

 either the obtrufion of an almoft impalpable 

 particle of duft, or the attack of an invifible 

 in fed.. 



Revolving f.ich circumftance for a few mo- 

 ments in remembrance, I claim his attention 

 to the following corroboration of that infa- 

 r2:iOus pradice I have, in the courfe of this 

 B b 4 work* 



