oxide and hydrogen, and most of the remainder of his paper was devoted
to an explanation of the best mode of preparing those gases (water
gases).

He concluded by saying: The employment of paraffin oil for gas making
has advantages in its favor, in the readiness of charging the retorts,
as the oil can be run in continuously for days at a time, and may be
discontinued and commenced again without opening, clearing out
residual products, recharging and reclosing the retorts. There is
necessarily, therefore, less labor and cost in working, and as the gas
is cleaner or freer from impurities, purifying plant and material will
be correspondingly less. Oil gas is now employed for lighthouse
service in the illumination of the lanterns on Ailsa Craig and as
motive power in the gas engines connected with the fog horns at
Langness and Ailsa Craig lighthouse stations. It is also used largely
in the lighting of railway carriages. Various populous places are now
introducing oil gas for house service, and he felt sure that the
system is one which ought to commend itself for its future development
to the careful consideration and practical skill of the members of the
Gas Institute.

* * * * *




THE MANUFACTURE OF SALT NEAR MIDDLESBROUGH.[1]

[Footnote 1: Abstract of paper read before the Institution of
Civil Engineers, May 17, 1887.]