Ful . iS . 



Fit} ■ 3] ■ 



RED OXYB or COPPER 



Eir^t JHodificatio/i continued. 



Fill ■ 2p . 



Ftp. J2 . 



Tranxactioms of ti)J! (reolofficaZ SoaWt/ Vol.1. 



Fig. 30- 



Fig-33 ■ 



Fig. 34. 



Second .Modification. 



^'V35- 



Fig- 3.0 



^igsT- 



Fig. an 



Fig 39- 



Fuhh'shed for t/if Soci'eti/. hi/ Ctuieil tmii Davieg.londonjBu. 



JF. loMTV sailj' 



