THE ALCOHOL INDUSTRY. PART II. 95 
while the content of higher alcohols, esters, and aldehydes would 
be rendered appreciably less, and that by increasing the amount 
of tails the resulting product would run somewhat higher in 
higher alcohols, esters, and aldehydes and considerably lower 
in acids. Several examples are given in illustration of these 
principals in Table IX. Number 1 represents the analysis of 
the distillate as actually obtained by the method employed at 
the distillery, number 2 the analysis of the distillate which 
would be obtained by increasing the heads to 13 liters or one 
per cent of the charge, and number 3 the analysis of the distil- 
late resulting from increasing the heads to 23 liters and the 
tails to 77 liters. In this last case, 20 liters of water have been 
added to lower the proof so that a better comparison with the 
other liquors might be had. 
TABLE IX.—Illustrating the effect of the removal of heads and tails on the 
composition of vino de coco. 
| 
Sam- j 
apie) Description. Alcohol. | Acids. | Esters. | Hoe 
ber. | | 
| cut 
; Per cent. 
1 | Heads 2 liters, tails 17 liters ____________________ 37.24 219.2 287. 4 | 5.4 
2 | Heads 18 liters, tails 17 liters ___________ ________ 36. 04 222. 6 192.1 4.5 
3 | Heads 23 liters, tails 77 liters ____._____-_________ 37.24 173.4 171.7 4.1 
The third liquor, although of the same type as the first, con- 
tains in comparison with it considerably smaller amounts of 
secondary distillation products, or, in other words, has under- 
gone a partial rectification. The determination of higher al- 
cohols in liquors abnormally high in esters and aldehydes, unless 
by special methods, is inaccurate and unsatisfactory, hence the 
figures given in Table VIII for higher alcohols are untrust- 
worthy as regards the first few fractions and can not be used 
in calculating the degree to which these constituents may be 
eliminated by fractionation. However, it is evident that the 
rejection of the first fraction lowers the content of higher alco- 
hols in a considerable degree. The heads and tails would be re- 
served for future utilization, and practically no alcohol would 
be lost. 
Since it was considered advisable to verify the results ob- 
tained at Nagecarlan by an investigation of another distillery 
in another district, two distillations were supervised at Cota, 
Tayabas Province, with the assistance of Internal Revenue 
Agent Hoey, on July 30 and August 1, 1911. 
The still at Cota is an old one, about to be replaced, of a type practically 
SS Se | See 0 0 
