DIGESTION AND RESORPTION 97 



Different quantities of gliadin were given to a dog 

 to eat and the intestinal juice was collected through 

 a fistula about one metre before the caecum. The 

 time of secretion and the quantity of nitrogen in the 

 secreted juice, from which a correction for the nitro- 

 gen-content of the gliadin was subtracted, were deter- 

 mined. As is seen from the table below, both the 



Secretion of Enteric Juice at Digestion of Gliadin 



(London and Sandberg). 



time of secretion and the secreted quantity follow 

 the law of proportionality to the square root of the 

 quantity of gliadin eaten. The determinations are 

 very difficult, because the secretion goes on discon- 

 tinuously with rather long intervals. For the 

 secreted nitrogen it is necessary to take the mean 

 values of two consecutive observations in order to 

 see the regularity. The sixth observation, (for 200 

 grammes) is excluded, because this observation, ac- 

 cording to the authors London and Sandberg, is 

 rather unreliable. 



H 



