p} 





Q> 



a. 



7. 



ft-4o 



2 



S 



£==& 



HrrJ^ 



/. Carbonate of Lead, 



2 P/iojpkate of lead . 



G Sp-reiU. dr./. etUt/t. 



3. 



3. Arscniatc <>f /< ■ rr,/ . 

 A- . ( Tiromate of L cczct . 



Printed iy C E Mm/e/ry 3 W,//i„ v Un; 



L cm don Pub by John Wilson, Frmoee St*' Oct.l 1851. 



