498 



xxvi r. 



ON THE DIFFERENCE OF BEHAVIOUR EXHI- 

 BITED BY INULINE AND OKDINARY STARCH 

 WHEN TEEATED WITH SALIVARY DIASTASE 

 AND OTHER CONVERTING AGENTS. 



The following' were the chief results : — 



1. Inuline from the Dahlia retains sugar with great tenacity, 

 but by repeated washings it can be freed from that impurity. 



2. "When thus freed from sugar, it obstinately resists the con- 

 verting influence of salivary diastase. 



3. This salivary diastase was obtained from human saliva, and 

 from parotid and submaxillary gland-substance infused with water 

 and buccal mucus. 



4. The same salivary diastase instantly converted ordinary starch 

 into grape-sugar. 



5. This salivary-gland infusion, however, if made with salivary 

 gland substance from young animals yet sucking, was found to be 

 ineffectual upon ordinary starch. Bidder's researches were in 

 accordance with this. 



These results led to the two following practical rules: — 1. Arti- 

 chokes are little likely to act as a substitute for the potato, as they 

 contain inuline vice starch. 2. Starch foods are useless in the early 

 months of infancy, as salivary diastase at such a period is inactive. 



<S> 



29 1 



