BY R. GREIG-SMITH. 



277 



or glycerin and the low product from dextrose was caused by 

 phosphate in the vegetable or other extract. The experiment is 

 the following : — 



The Lupin (Kral) Race with Various Extracts and Carbonaceous 

 Nutrients. 



Nature and strength of 

 extract in medium. 



Meat, 12-5 grams % 

 Yeast, 10 ,, 

 Lupin, 25 ,, ,, 

 Turnip, 23 ,, ,, 

 Potato, 25 ,, 



Dextrose 2% 



Levulose 2% 



Glycerin 2% 



4 



13 



22 



5 



18 



21 



5 



11 



6 



4 



5 



3 



3 



26 



25 



In the course of the investigation, with the Kral races, it was 

 noted that very small yields were sometimes obtained from 

 saccharose. This was traced to the partial inversion of the 

 saccharose during sterilisation. It was then considered possible 

 that the action of dextrose or levulose in combination with 

 saccharose might give some information regarding the affinitie s 



The Influence of Dextrose and Levulose upon Saccharose. 



Saccharose 2%, 



With Citrate of Potash. 



With Phosphate of Soda. 



' o 







Asparagin 0'05% 



aiM 



Expt.2, 12/12/'04. 



Expt. 3, 9/3/'06. 



Salt 0-2%, 



&3 cT 







Agar 2% with 





















2% of 



3* 



si 



a a 

 P $ 





«3 2 



.2 

 '3 



o 



.5^ 



"Si 2 





eS-5 

 a) r 



Ph 3 



=3 17 



2. 



o 



03 



Saccharose, = 10 



10 



10 



10 



10 



10 



10 



10 



10 



10 



10 



Dextrose 



2 



8 



12 



11 



12 



3 



13 



9 



7 



9 



Levulose 



2 



2 







3 



12 



17 



6 



2 



2 



12 



Saccharose, 







1 















actual % 



13 



12 



9 1 4 



11 



6 



7 



6 



6 



14 



of the races, and accordingly experiments were made with this 

 object in view. 



