of Organic Bodies. 279 



The sulphur may be considered as existing in the carbo- 

 nized bile, after exhaustion by the solvents, as a constituent 

 of certain compound radicals, in the same manner as was 

 assumed to be the case with the phosphorus in the carbonized 

 product of other organic substances. But in this carbonized 

 mass the amount of sulphur is much larger than would be 

 found by calculation from that of the sulphuric acid obtained. 

 A very large portion of it is volatilized during the oxidation. 

 If the exhausted carbonized mass be mixed with nitrate of 

 baryta, and the mixture be heated to redness, so much sul- 

 phate of baryta is obtained, that the quantity of sulphuric 

 acid existing in it amounts to 30 per cent, more than that 

 obtained by the mere oxidation of the carbonized mass. 



The following are the proportions of the inorganic compo- 

 nents of the bile as obtained in the three operations: — 



Extracted by water 90*85 



Extracted by muriatic acid ^-QS 



In the ash of the residue of the carbonaceous mass 4*22 



10000 



The following are the whole of the inorganic constituents 

 of the bile of the ox: — 



Oxygen, 



Chloride of potassium . . . 27'70 



Potash . . , 4.-80 0-81 



Soda . 36-73 9*39 



Lime 1-43 0-40 



Magnesia 0-53 0*20 



Peroxide of iron 0*23 0-07 



Manganoso-manganic oxide . 0*12 0'03. 



Phosphoric acid 10-45 5-85 "^ 



Sulphuric acid 639 3'82 



Carbonic acid 11*26 8*14 



Silica 0-36 0*18 



>10'90 



^17-99 



100-00 



The quantities of the acids are not correct, because, as we 

 have stated, a far larger amount of sulphuric acid would have 

 been obtained had the whole of the sulphur been converted 

 into sulphuric acid. 



Appendix XIII. 



Exami7iation of the Inorganic Constituents of Cow's Milk. By 

 M. Weber. 



The cows from which the milk was procured were fed with 

 the refuse of a brewery in addition to the ordinary stall-fodder. 



