BY SULPHATE OF PBOTOXIDE OF IRON. 



165 



Having to contend with phosphates which would have 

 rendered the determination of the iron in the state of per- 

 oxide of iron very tedious and difficult, I treated the calcined 

 residuum with pure hydro-chloric acid, evaporated with care 

 to a syrup, added water, and filtered ; the liquors were then 

 reduced to the state of proto-chloride of iron by means of 

 pure 2inc, and the amount of iron they contained determined 

 by Marguerite's test (per-manganate of potash). The follow- 

 ing results were obtained : — 



Grs. 



6Joz.. of the Intestines yielded SCFeO 1-054 



5i oz. of the Stomach yielded SO^FeO 0-324 



Of portions of the Stomach and Intestines previously 



treated for other poisons 1 '256 



The Coagulum obtained by boiling the fluids of the 



Stomach 0-060 



Contents of the Stomach separated from the Coagu- 

 lum and evaporated to dryness, and insoluble 



in Alcohol 0-526 



In the above, but soluble in Alcohol 0-824 



Liquid obtained by washing Intestines 0*993 



Fluid from the Intestines 0-526 



Total amount of Copperas, or the Sulphate 



of Protoxide of Iron 5-663 



I also found an unusual quantity of sulphuric acid or 

 sulphates in the different fluids. 



An interesting fact is, that although nine days had elapsed 

 between the death of John Hill and the day following that 

 on which the intestines were placed in my hands, the patches 

 or spots on the intestines still preserved an acid reaction, 

 which was manifested on a slip of blue litmus paper being 

 applied to them, 



I have great pleasure in publishing here an extract of 

 the anatomical appearance of the intestines and stomach, as 

 described by Dr. Henry Brown ; — 



