266 



9. Saccliarode, fermented with T. dattila gave : 



Taken: 1.65 1.80 1.68 2.49 2.19 2.31 2.25 0.78 2.13 1.31 1.59 mgr. 

 Found: 1.66 1.76 1.76 2.47 2.27 2.20 2.17 0.82 2.13 1.38 1.67 mgr. 

 Taken :1.86 1.71 1.62 1.592.31 1.74 1.31 1.65 1.77 1.77 2.10 1.83 mgr. 

 Fonnd: 1.971.73 1.68 1.58 2.21 1.80 1.38 1.64 1.81 1.83 2.17 1.95 mgr. 



10. Solutions of saccharose with S. cerevisiae gave the following 

 numbei'S : 



Taken: 1.41 J. 53 2.19 2.25 2.70 J. 23 2.13 1.50 J. 59 1.59 mgr. 

 Found: 1.72 1.62 2.25 2.35 2.53 1.34 2.16 1.70 1.62 1.75 mgr. 

 Taken: 1.65 1.80 1.47 mgr. 

 Found: 1.93 1.90 1.59 mgr. 



11. Solutions of maltose, fermented with S. cererisiae: 



Taken: 1.26 1.80 2.46 2.31 1.83 1.65 2.52 1.86 1.68 1.35 1.38 mgr. 

 Found: 1.38 1.72 2.32 2.32 1.72 1.52 2.42 1.66 1.55 1.30 1.51 mgr. 



12. With a solution, containing 3 per cent, glucosehydrate, 3 per 

 cent, saccharose ai'd 3 per cent, maltoseliydrate, we undertook three 

 feiineutations, viz. with T. mono.sa, T. ddtlilu and S. cerevmae. With 

 7\ munosa tiie carbonic acid obtained from 0,045 cc. of the solution 

 was 0,326 cc, witii T. dattila 0,633 cc. from 0,045 cc. and with 

 S- cerevisiae 0,932 cc. from 0,043 cc. ; all gasvolumes being reduced 

 to 0° C, and 760 mm. From these numbers we calculate that of 

 1 cc. of the solution 7,1 ; 14,1 and 21,7 cc. of carbon dioxide will 

 be obtained by each of the 3 yeasts. Consequently there were 

 obtained 7,1 cc. from monoses (here from glucose-hydrate), 7,0 cc. 

 from saccharose and 7,6 cc. from raaltosehydrate. This means a 

 composition of the solution of 3,1 per cent, of glucosehydrate, 2,7 

 per cent, of saccharose and 3,1 per cent, of maltosehydrate. 



13. Other determinations with solutions of the same composition 

 gave the following results: 



2,85 7o glucosehydraat ; 3,2 "/„ saccharose; 2,7 "/o nialtosehydrate. 

 2,98% „ 3,19% „ 2,84% 



The three last numbers were calculated from the results of ana- 

 lysis, made in triplo. 



14. Juice, pressed from a slice of orange, was diluted with water 

 to the threefold of the original volume and the diluted juice was 

 fermeiitfd with tiie three iliiferent yeasts. One cc. of this liquid 

 practically gave the same amount of carbon dioxide, when fermented 

 Willi 7'. diltilii and with ^b'. cereoisia.e, so that maltose was absent. 

 Till- com|>usiiiun of ihe uiidiiuied sap was calculated as to be: 2,6 

 per cent of monoses and 3,1 per cent, of saccharose. 



