Vol. x No. 4.| The Hindu Method of Manufacturing Spirit. 141 
N.S.) 
sugar used up could be turned into alcohol, we see that this per- 
centage of acid means a loss of about 0°78 gallons of Proof spirit, 
In this calculation, 1 lb. of acetic acid has been taken equivalent to 
0°76 lb. of alcohol or 0°17 gallons of P.S. One per cent. of acetic 
acid in 263 gallons of wort would therefore roughly mean 2°35 lbs. 
does not necessarily mean actual transformation of alcohol =" 
acid. For convenience of estimation the total acid is regarde 
acetic acid, We know that there are various re of acids lad, 
some of which are derived directly from rice, that is, its starch 
and sugar. We see, however, that if the ig as acid could be pre- 
vented, and the alcohol collected from spent wash, the average 
yield of alcohol per 82 lbs. of rice would be about 5 gallons of 
S. 
IV. Suggestions—The study of rice fermentation enables us 
to suggest a few possible improvements in the method which is 
followed rather blindly, and to guard against defective fermenta- 
tion which is not an unusual occurrence. 
i) We have seen how damp air affects eae by vigorous 
growth of Mucor and of other undesirable organisms drawin 
retarded o y 
experiments I found that vigorous growth did not yield satisfac- 
tory result. In plenty of an organic substance, such as rice, in 
jr ie induces pune ak hs ap bm gal 
object of caking being ance the spores 
hed tt by artificial heatin 
3 (A) So =r : rapid at in on ee is unde- 
sirable. This may be checked i) ve oy g water or es 
when it is first laid out to cake; and (2) by placing large tu 
water in caking sheds. Perhaps a wi va g& Lary b bulb teetiomnatar? 
hung up in the sheds, will prove a useful adjun 
iii) Better of a pirit in cold cael is due to several 
causes, the chief of which are low temperature re aci 
fermentation, and comparative absence of weevils. i 
u on. The vats sho ca washed and 
fumigated than they are done at ent. The caking sheds can- 
not be kept closed, as absence of £ plenty of light prevents rapid 
maturing and carbonization of Mu essential in successful 
in Euro 
(i sone Thorough cleanliness is also a remedy against attack of 
weevils. The difficulty of getting rid of the pest is enhanced by 
