IMPROVED. 135 



the Water, or Ointment, may either of them be 

 made weaker, as the Cafe requires, by adding more 

 Water to the firft, or more Batter to the hitter. 



I have read over at leaft an hundred Forms of 

 differently contrived Eye-Waters, Powders, Oint- 

 ments, &c. for the Cure of Rheumy Eyes, but let 

 thefe fuffice with thofe who have fo much Learning 

 as not to pin their Faith upon the Number of In- 

 gredients in any Prefcription, but rather upon a few 

 rightly chofen Drugs properly adapted to the Cu- 

 rative Intention ; for of the other Praftice there is 

 no End, neither is it fupported by right Reafon. 



De Grey has fome Things here and there worth r^e Gny 

 Obfer/ation in his Book of Farriery ; but he had a ccnliiretl, 

 comical out-of-the-way Notion, when he fancied 

 that Human Dung fry'd to a Coal and powder'd, 

 and blown thro' a Quill into a Horfe's Eyes, takes 

 away Specks, Films, i^c. Indeed there is fome- 

 thing of a Salt called Jnimal-Salt contained in the 

 Excrement of all Creatures, but more efpecially in 

 the Dung of thofe which difcharge the Urinous Salts 

 along with it,, having no Pifs-Bladder or Receptacle 

 for the Urine, fuch as Geefe, iffc. whofe Dung is 

 white at one End ; ( when it dries haflily ; ) and 

 thefe are the Urinous Salts of fuch Ufe among the 

 common Sort of People for the Cure of the Jaun- 

 dice i but I am of Opinion, that the Dung of Ani- 

 mals, however cooked, will be Dung ftill, and not 

 avail much in curing any Difeafes of the Eyes. 



CHAP. XVI. 



Of Moon-Eyes, or Lunatick Eyes. Of Moon- 



Eyes. 



MR. Gihfon defines Moon-llindednefs to proceed Mr- quMs 

 from *' an obftinate Stagnation in the fmall J^^^'^'J^'^^^;^ 

 *' Arteries of the Tunica Adnata or outermoll Coat b'indncls 

 ** of the Eye, commonly called the White of the ctnUiiwd. 



- Eye, 



