L 5°5 ] 
Then they fix it to a wall to dry, till it is fit to be - 
burnt. 
For want of wood, which none but the rich in 
Egypt can afford to buy, they burn this dung through 
the whole country, and fell a vaft quantity of it to th^ 
fait- makers. 
The excrements of the camel are not found at all 
preferable to any other 3 and its urine is never ufed 
for this purpofe, although generally reported fo by 
authors. 
The falt-workers pretend, that the human excre- 
ments, and thofe of goats and fheep, are preferable 
to any other. 
The months of March and April is the only time 
they make the fait. 
Sal ammoniac is made in the following manner : 
They build an oblong oven, about as long again; 
as broad, of brick and moift dung, of fuch a fize, 
that the outfide, or flat part of the top of the arch, 
may hold fifty glafs veffels, ten in length, and five 
in breadth, each veffel having a cavity left for it in 
the brick-work of the arch. See Tab. XI. 
Thefe glafs veffels are globular, with a neck an 
inch long, and two inches wide. 
Thefe veffels are of different fizes, in different fait- 
works, containing from a gallon to two gallons 3 but, 
in general, are about 1 8 inches diameter. 
They coat each veffel over with a fine clay (which 
they find in the Nile), and afterwards with ftraw3. 
they then fill them two-thirds full of foot, and put 
them into their holes on the top of the oven. 
They make the fire gentle at firft, and ufe the 
afore-mentioned dried dung for the fuel 3 they in— 
creafe 
