DIGESTION AND RESORPT1ON 93 



the pancreatic juice secreted in forty minutes was 

 nearly proportional to the square root of the con- 

 centration of the hydrochloric acid, as is seen from 

 the following table, where the calculated values are 

 found by means of the square-root rule. The time 



SECRETED PANCREATIC JUICE IN 40 MINS. AFTER INTRODUC- 

 TION OF 250 cc. DILUTED HYDROCHLORIC ACID 



Concentration of the acid . 0-5 o-i 0-05 per cent. 

 Pancreatic juice, obs. . 80-5 28-3 20-5 cc. 



calc. . 70-7 31-6 22-4 



of secretion was also nearly proportional to the same 

 quantity. 



For very small quantities of chewed flesh (below 

 200 grammes) the digestion proceeds nearly accord- 

 ing to a monomolecular formula, i.e. the curve given 

 above does not diverge very much from an exponen- 

 tial curve. The same was found by LONDON for the 

 digestion of 200 grammes coagulated egg-white. 

 When the undigested quantity sinks below 20 

 grammes, the digestion proceeds very much more 

 rapidly than the formula demands. This probably 

 depends on the carrying away of a part of the undi- 

 gested food with the digestion products. 



LONDON has carried out some experiments re- 

 garding the resorption of dextrose, which is not 

 subject to any digestion before its assimilation. He 

 introduced a solution of this sugar generally 200 

 cc., in some experiments 100, 500 or 800 cc. were 

 used, heated to 38 C. in doses of about 20 cc., with 

 intervals of about twelve seconds in a fistula in the 



