NITROGEN RADICALS 



81 



TABLE II. 



The inter-relation of cartilage and its component parts, namely, 

 gelatine and chondro-sulphuric-acid, is well seen in the following table, 

 in which, in each case, the total nitrogen = 100 per cent : 



Hausmann's method, notwithstanding the inaccuracies in the di- 

 amino-fraction, gives results, in the hands of Osborne and Harris * and 

 of Pick, 2 which show that differences in the construction of the 

 albumin-molecule can be revealed, which by ordinary analysis would 

 remain hidden. 



Sorensen and Andersen 3 drew attention to the fact that if lower 



1 Osborne and Harris, Journal of the Amer. Chem. Soc. 25- 



2 E. P. Pick, Zeitschr.f.physiol. Chem. 28. 219 (1899). 

 3 S. P. L. Sorensen and A. C. Andersen, ibid. 44. 429 (1905). 



