fund of this
character, the sick or infirm are abandoned by their companions and
left to die. Generally miners are inoffensive when fairly dealt with.
They are said to be indolent and dishonest as a rule. The managers of
mines receive from 3,000 to 5,000 lire per annum; chief miners from
1,500 to 2,500 lire; surveyors, 700 to 1,000 lire; and weighers and
clerks, from 1,000 to 2,000 lire per annum. The total number of mining
laborers in Sicily is estimated at about 25,000.
The ore for fusion of the first grade as to yield contains from 20 to
25 per cent. of sulphur, that of the second grade from 15 to 20 per
cent., and of the third grade 10 to 15 per cent. The usual means
adopted for extracting sulphur from the ore is heat, which attains the
height of 400 degrees Centigrade, smelting with the kiln, which in
Sicilian dialect is called a "calcarone." The "calcarone" is capable
of smelting several thousand tons of ore at a time and is operated in
the open air. Part of the sulphur is burned in the process of smelting
in order to liquefy the remainder. "Calcaroni" are situated as closely
to the mouth of a shaft as possible, and if practicable on the side of
a hill, in order that when the process of smelting is complete, the
sulphur may run down the hill in channels prepared for the purpose.
The shop of a "calcarone" is circular and the floor has an inclination
of from 10 to 15 degrees. A design of a "calcarone" is herewith
inclosed. The circular wall is made of rude stone work, cemented
together with gypsum. The thickness of the wall at the back is 0.50
meter, and from this it gradually becomes thicker until in front,
where it is 1 meter, when the diameter is to be 10 meters. In front of
the thickest part of the wall an opening is left, measuring 1.20
meters high and 0.25 meter broad.
Through this opening the liquid sulphur flows. Upon each side of this
opening two walls are built at right angles with the circular wall, in
order to strengthen the front of the kiln. These walls are 80
centimeters thick each and are roofed. A door is hinged to these
walls, thus forming a small room in front of each kiln in which the
keeper thereof resides from the commencement to the termination of the
flow of sulphur. The inclined floor of the kiln is made of stone work
and is covered with "ginesi," the name given to the refuse of a former
process of smelting. The stone work is 20 centimeters thick, and the
"ginesi" covering 25 centimeter
|