168 The Philippine Journal of Science 



A DEMONSTRATION OF THE FOLIN METHODS FOR THE ANALYSIS OF 



THE URINE 



By Dr. R. B. Gibson 



The publication by Folin and Denis ^ of a description of pracr 

 tical colorimetric methods for the determination of the several 

 forms of nitrogen in the urine and blood makes a demonstration 

 of these methods timely. The methods, which are based on 

 direct Nesslerization, are easy, rapid, and accurate. With a 

 little practice they may be carried out by the ordinary physician. 

 These methods are at present being taught to the students in 

 physiological chemistry in the College of Medicine and Surgery 

 of the University of the Philippines. Printed directions for 

 the analyses, as demonstrated before the society, will be fur- 

 nished on application to the department of physiology. 



R. B. Gibson, 

 Editor of the Proceedings, 



Manila Medical Society. 



^Journ. Biol. Chem. (1916), 26, 473-506. 



