View report page

10
may be said to be its pre-eminent solubility. It is soluble
to any extent in liquid hydrocarbons, and its vapour is
freely soluble in, and is carried along with, vapours of
similar bodies. Thus the art of removing napthaline consists
in the slow condensation, whereby the vapours are kept
together until at a point of what we may call supersaturation
is reached, at which deposition takes place, leaving so much
as can be retained in solution by the vapours of benzol, &c.,
to pass on to the consumer's burner. It is a valuable illuminant,
and, therefore, the retention of as much as possible is
desirable."
It is generally believed that varying pressures do
not affect the working of the regulators; theoretically
it would appear so, but practically it is otherwise, for
instance, in testing 12 governors that were formerly in
use in this Parish before the introduction of the average
Meter system the following results were obtained:—
At 8/10th pressure.
At 15/10th pressure.
The Average being 4.65 Cu. ft.
5.04 Cu. ft.
The Maximum „ 5.1 „
5.7 "
The Minimum „ 3.7 „
3.5 „
Again, in testing 33 governors after three months
working, which before being fixed were tested and
stamped by the Gas Company's officials as being
correct, the following results were obtained:—
At 8/10th pressure.
At 15/10th pressure.
The Average being 4.83 Cu. ft
4.81 Cu. ft.
The Maximum „ 5.3 „
5.4 „
The Minimum „4.1 „
4.1 „