424 M. Berzelius on Isomorphism a& [June, 



Cupriferous sulpliuret of bismutli 2 Bi S- + 3 Cu S ? 



Tin pyrites Sn S'' + 2CuS 



Sulphuret of silver Ag S- 



Argentiferous sulphuret of copper 2 Cu S + Ag S'^ 



AVismuth-bleyerz Fe S'^ + Ag S'^ + 2 Pb S' +2818"? 



Cinnabar Hg S'^ 



Sulphuret of antimony Sb S^ 



Nickel-spiesglannerz Ni As, Ni Sb, Sb S» 



Bournonite Cu S + Tb S' + Sb S' 



Endellione ? (Schwarlzei :) Cu S + x Sb S' 



"Weisgultigerz. 



«. Dunkel Pb S-, Sb S3 



/;. I,icht Pb SS Ag S% Sb S', Ni As 



Grey copper. 



KedbUver 2 Sb S3 + 3 Ag S'' 



Sulphuret of niolybdena , Mo S' 



Sulphuret of arsenic. 



a. Realgar As S^ 



b. Orpiinent As S^ 



Sulplio-arsaiiureis. 



Mispickel Fe S* + Fe AS* 



Grey cobalt Co S< + Co AS* 



Grey nickel Ni S'* + Ni AS'' 



17. Oxygen. 



Oxygen gas : O 



fl. Elcclio-ijositive oxides. 



Deutoxide of manganese Bin Mn 



nictalloidal manganese Mn 



Bed zinc Zn Zn 



Oligiste iron Ye. F 



Oxydulous iron Fe F&' f F3 



Franklinite Zn Fe» + Blii Fe* \"^l F^ 



Earthycobalt Co + Mn + 3 Aq 



Red copper Cu 



Black copper Cu 



Massicot Pb 



Minium Pb 



Oxide of bismuth Bi 



Black uranium U 



Oxide of tin Sn 



b. Electro-negative oxides. 



Water H Aq 



Hydrates. 

 Brucite Mg Aq* M Jq 



