In the process of gas making, coal is placed in the generator and
heated to an incandescent state, then from the top or bottom steam is
admitted and forced through the heated coal, producing a crude water
gas which is passed on to the carbureter. In this shell enriching oil
is produced, but as the oil and the water gas do not effectually unite,
they are passed on to the superheater, where, as its name implies, they
are subjected to a high temperature which thoroughly gasifies them into
a permanent gas.]
[Illustration: AN INTERIOR VIEW OF GENERATOR HOUSE.]
* Pictures on Gas Manufacture by courtesy of the Consolidated Gas,
Electric Light and Power Co. of Baltimore.
[Illustration: ILLUMINATING GAS MUST BE SCRUBBED