DIGESTION AND RESORPTION 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 



