Vol. rt 7 4.| The Hindu Method of Manufacturing Spirit. 139 
SS 
showed 4°05 gallons Proof spirit. The stage quantity 
volleatedl at the distillery Nh 5} gallons out of 26; 
Ibs. 0 gave 53 gallons of wash 
Distilled at the Ne distillery on 24th May 1904. Distillate 
63 gallons 5 U.P, 5 gallons 47 v. P. Total distil- 
gallons Proof spirit, For 82 Ibs. of rice 4°415 gallons 
Proof spirit. A very satisfactory yield. A small 
From results such as these, it appears that if the last trace of 
alcohol present in a wash were collecte d, the average yiel m 
82 Ibs. of rice cre in the usual way would not exceed 45 
gallons Proof s 
pir 
ere is, ‘sia another factor that determines the total 
yield of alcohol. It is well known that acid fermentation of wort 
takes path a portion of available su from it and thereby 
uses some loss of alcohol. I have not noppossapibies of com- 
ifferent seasons of th 
patie the @ sesame of acid oe in ms e 
yee gare most of a experim which my conclusions 
ied out in the two eee | months of April and May 
of | this year ® (1908) when the maximum air temperature, varying 
betwee —108° F., was very favourable for acid fermentation. 
The ety 3 figures 3 will, however, show the relation between the 
proportion of acid and alcohol in wort and spent wash. ~ 
1. Wort. Vat charged on 11th and 12th May 1904, Wort ex- 
amined on 25th May 
(a) Acid (as sate acid ) 2384°/, 
(b) A small quantity of the wort distilled, and is distil- 
late made up with water to original volume— 
te The wort could yield 4°05 piilons a ts ay 82 Ibs. of 
Toe, 
2. Wort kept a month in a bottle after it had been pronounced ripe 
for distillation— 
; Acid: &.. (ek 1 DOS?/,, 
3. Wort prepared on 16th May 1904. Examined on the ninth day 
(25th May 1904) when it was not yet ripe— 
po eee He v TCS, 
4, Spent wash sven to above) of a wort of which 2, were drawn, 
yielding 4°415 gallons P.S. on 24th May 1904. 
(a) Peitaad on 25th May 1904— 
Acid... 2°32°/, 
