( 45 ) 



of filteration, recommended by Dr. Rotheram, or 

 that which Is propofed by M. Amy. 



The obfervations, which I have here laid before 

 the reader, are not new. They have been com- 

 municated to the public by others. But they are 

 difperfed through many different publications. 

 1 have therefore thrown them into a fmall 

 compafs. And I flatter myfelf, that, in this 

 commodious form, they may be acceptable 

 to the public; as m.any of the foregoing ar- 

 ticles are of infinite importance to the health, and 

 ponfequently to the happinefs of mankind. 



F I N I S^ 



