ORDER VI.—VEIN-WINGED INSECTS. 291 
then put into the liquor and well mixed with a spoon, and 
the boiling is continued for two minutes more, after which 
the white of eggs is added, and the whole is then mixed 
with the same care as the charcoal, and it is again boiled 
for about two minutes; the vessel is then taken from the 
fire, the liquor is left to cool, and is then strained through 
a sieve or flannel. 
“T'o excite fermentation the liquor must be exposed to 
heat. Two methods are practiced for this purpose: the 
first is to place the liquor in a stove, or the corner of a 
chimney, in which a constant fire is kept; some bottles are 
filled with the same liquor. In about seven or eight days 
the liquor emits a thick and dirty froth, which leaves a 
vacuum in the barrel which must be filled up from the 
bottles, which are also in a state of fermentation, which 
lasts about, two months, and then ceases of itself. The 
other method is to expose the liquor to the sun; but in this 
case it must be done in the month of June, and left exposed 
until the fermentation ceases, which takes place in three or 
four months. On placing the barrel in the warmest situa- 
tion, it must be raised a little from the ground, and atten- 
tion mist be paid to the bees and other insects attracted by 
the odor. During the heat of the day the liquor swells, 
the froth rises to the bung-hole, and runs down on each 
side of the barrel. Instead, therefore, of placing the barrel 
exactly horizontal, it is better to give it a slight inclination, 
taking the bung-hole as the parallel. As soon as the sun 
sets, or is obscured, the volume of the liquor is diminished, 
and the barrel has no longer the appearance of being full. 
In the first case the bees will lick up, without danger to 
themselves, the liquid which has flowed from the barrel; 
but in the second the bung-hole must be closed with a plate 
of lead pierced in holes; without this precaution the bees 
would drown themselves. The plate of lead must be taken 
off when the liquor begins to froth, and when the barrel is 
