vi DIPHTHERIA ALBUMOSES 157 



Eesult : a yellowish brown powder, consisting chiefly 



of deutero-albumose : 



(a) insoluble in chloroform, ether, alcohol, am- 

 monium sulphate, and nitric acid, in the 

 presence of sodium chloride ; 



(b) soluble in cold or boiling water ; 



(c) giving a marked biuret reaction. 

 For the separation of the albumoses see page 152. 

 (b) Diphtheria spleen. 



(1) Mince the spleen of a child dead of diphtheria. 



(2) Throw the finely minced mass into a large excess of 

 strong methylated spirit, and allow it to stand for several 

 weeks. 



(3) Separate the spirit by means of filtering. 



(4) Then proceed exactly as described above (see (a)). 

 Albumoses, especially deutero-albumose, will be obtained, 



