58 MUCIN OF FIBROUS CONNECTIVE TISSUE. 



tone were both present in abundance. The caramel-like body 

 precipitated by alcohol was naturally more abundant than in 

 the first case, but on analysis it was found to contain a large 

 percentage of nitrogen, so that its fancied resemblance to 

 caramel is purely superficial. By evaporation of the alcoholic 

 extract containing the greater portion of the reducing body a 

 residue was obtained as before, from which a crystalline 

 osazone was formed agreeing in all of its properties with the 

 body previously described. The purified osazone melted at 

 158 to 160 C. It is thus evident that the mucin or mucins 

 present in ox tendons yield on cleavage with dilute hydro- 

 chloric acid a carbohydrate body which forms a well-defined 

 and crystalline osazone, although at present we cannot state 

 definitely the exact nature of this carbohydrate substance. 



