296 R. T. BAKER AND H. G. SMITH. 
To the 17th day °4 cc. was obtained. 
19 
” ” 1 ” 2 
i OD Tg Rg 6 
Bk as ee ” 
gic ae ae es = 
” 23 ” 2 ” 3” 
” 24 ”? “4 ” 2? 
” 25 5 "3 yy ” 
ee ae ” 
a ef Be 2 ee *s 
3) 28 ” “4 ” 7 
These readings were all taken early each morning. On the 
completion of the decomposition, the gas was absorbed to a large 
extent by potash solution, indicating CO,, but unfortunately 
owing to an accident the experiment could not be completed. 
The liquid, however, when distilled gave indications for alcohol. 
The products are thus the same as when decomposed by ordinary 
yeast. This experiment will be repeated on larger quantities of 
material and the products of decomposition determined quantita- 
tively. 
No. 2, a very small quantity of a solution of phosphoric acid, 
made alkaline with ammonia, was added to a portion of the same 
sugar solution as No. 1. Although the sugar solution remained 
turbid, yet, the organisms did not multiply to any extent, and 
there was no decomposition of the sugar with evolution of gas. 
during three weeks. 
No, 3, a minute portion of nitrate of potassium was added to 
the solution prepared as in No. 2. The solution soon became 
ropy and after a few days had become quite clear. No decompo 
sition of the sugar took place. 
No. 4, a portion of the cane sugar was boiled with hydrochlorie 
acid, neutralised, made acid with tartaric acid, and the same 
quantity of the organisms added, no decomposition took place 
during three weeks, 
