Foetal Membranes of the American Beaver (Castor canadensis). 215 



grammes per litre 



Chlorine 1.66 



Urea 0,25 to 0,3 



Phosphates, present. 

 Sulphates, present. 



The Ash gave spectra of Calcium, Potassium and Sodium. 

 No reactions for Glucose, Uric acid, or Creatinin obtained. 



