$12 ANALYSES OF MINERALS. 



Fuller's eartn, Fuller's earth from England. 



Silex 53 



Alumme 10 



Oxide of iron' 9-75 



Magnesia , . 1-25 



• L>me Q-50 



Sea salt O'lQ 



Water , , 24 



Potash, a trace 



98-6 

 »nd Siberian. R e d fuller's earth from Siberia, 



Silex ........ ....... ......,,,... ... 48"5 



4lumine 15'5 



Magnesia • • 1 •§ 



Oxide of iron 6*5 



■ - ■ ■■■■ ; ■ mangauese ...... 0*5 



Water 25*5 



S.ea s,alt, a trace 



98 

 Re<J ea^b of Earth of Sinope, in Pontus, brought from Natolia by 

 $mope. jyj r# Hawkins. This earth, according to Pliny, formed 



red paint. 



Silex ,*.,...,,,.,.,..,... 32 



Aluoaine 26-5 



Oxid,e of iron. 21 



Sea salt 1*5 



Water ............... 17 



V. . . 98 



RbcaI. Tincal, crystallized borax. 



^oracic acid 37 



Soda 14'5 



Water of crystallization. .... 47 



Datholite 



