320 RESULTS. [APP. I 



Chapter XVI. p. 305. Unorganised ferments^ etc. 

 Diastatic Ferments. 

 Experiment No. 2. 



Using the method described in the text (p. 304) an 

 extract of 10 grs. of fresh malt acting for one hour at 50° on 

 soluble starch produced 2 "5 grs. of maltose; whilst a similar 

 extract of 10 grs. of barley grains acting under exactly the 

 same conditions produced only traces of maltose. 



Experiment No. 3. 



An extract of air- dried leaves of barley compared under 

 exactly similar conditions with the same malt extract as used 

 in experiment No. 2 produced no maltose. 



Experiment No. 4. 



Adding to the soluble starch solution the finely divided 

 tissues themselves and not extracts which had been filtered 

 clear. 



10 grs. air-dried leaf acting Leaves of Leaves of 



for one hour at 50°, pro- Pisuni Trifolmm 



duced from soluble sativum. pratense. 

 starch. 



Maltose 0-6 grs. 0*2 grs. 



Invertase. Glycase. Glucoside fermients. 



Experiments No. 1 — 3. 



Positive results should be easily obtained in all these 

 experiments. 



In No. 3 — where a control experiment is made — we have 

 never found the quantity of sugars produced by digesting 

 10 grs. of coarsely ground maize with 200 c.c. of water, for 5 

 or 6 hours at 40° — 50°, to exceed 0-2 grs. of 'reducing' sugars. 



