267 



This carbon dioxide is equivalent (o 0,402 X 4,45 = 1,78 mgr. 

 of glucoseliydrate. Originally' the apparatus received 0,058 cc. of 

 liquid, corresponding to 1,74 nigr. of glucosehydrate. 



2. With T. inonosa we fei'mented a 1 per cent, solution of glucose- 

 hydrate. The successive readings were: 0,020; 0,030 ; 0,041 ; 0,053 ; 

 0,059 cc. The last reading was taUen at 19' C. and 760 mm. The 

 quantity of gaseous carbon dioxide in the apparatus after fermentation 

 is found to be 0,006 cc. ; after reduction to 0° C. and 760 mm. 

 this volume remains the same. The volume of liquid was 0,021 cc. 

 Consequently the total amount of carbonic acid of 0° and 760 mm. 

 may be assumed to be 0,027 cc. This gives 0,027 :^, 4,45 =r 0,12 mgr. 

 glucosehydrate, whereas we took 0,10 mgr. 



3. In a similar way we obtained the following results hy 

 fermenting other solutions of glucosehydrate with T. inonosa. The 

 two corresponding numbers are placed one beneath the other. 



Taken: 1.89 1.77 1.41 1.35 1.59 1.59 1.83 1.74 1.89 mgr. 



1.57 1.64 1.81 1.78 1.86 mgr. 



0.19 0.10 2.16 1.71 0.84 mgr. 



0,22 0.12 2.20 1.65 0.93 mgr. 



4. Solutions of glucosehydrate, fermented by T. dattiln gave the 

 following results: 



Taken: 1.29 2.67 1.62 2.04 1.68 1.32 1.89 1.56 1.65 1.98 1.89 mgr. 

 Found: 1.54 2.65 1.74 1.94 1.62 1.34 1.93 1.60 1.78 1.93 1.65 mgr. 



5. In the same way we found by fermenting solutions of glucose- 

 hydrate with S. cerevisiae (press-yeast) : 



Taken: 1.56 1.83 2.13 2.13 2.04 1.80 2.31 1.50 mgr. 

 Found: 1.62 1.90 2.18 2.14 2.20 2.16 2.38 1.82 mgr. 



6. (Quantitative determinations of fructose by fermenting with 

 T. monosa gave us : 



Taken: 1.65 1.68 1.26 2.01 2.25 mgr. 

 Found: 1.58 1.69 1.23 1.97 2.10 mgr. 



7. From similar determinations of fructose, fermented by T. dnt- 

 tihi resulted : 



Taken: 1.47 1.62 0.99 1.44 1.89 1.50 mgr. 

 Found: 1.67 1.88 1.12 1.44 1.88 1.64 mgr. 



8. The results of fermenting fructose with »S'. ct^/vtVAv'ac were these: 



Taken: 1.56 1.68 1.80 1.56 1.41 1.68 mgr. 

 Found: 1.51 1.81 1.80 1.60 1.15 1.63 mgr. 



