August 9, 1918.

THE COLLIERY GUARDIAN.

273

By Tests The Best

“SINGLE HOOD”

RESULT OF LATEST TRIAL

o/ COAL 0 1110/ INCREASE
/o SAVED Ow | Jj /o EVAPORATION

“PERFECTA” BOILER CIRCULATOR Ltd., 39, Victoria Street, LONDON, S.W. 1.

100,000

supplied or on order.

Approved by both
British and French
Governments—that’s
the Sterling record
of the

Hailwood . .

Combustion
Tube Lamp.

Gives 1| to If C.P.,
it is cheaper and
more reliable than
an electric lamp—
and it has gas de-
tecting properties,
too.

COMBUSTION

Hailwood
Combustion

Tube Lamp
is the ideal lamp for
the miner.

Because of the scien-
tific principles upon
which its construction
is based, it is not readily
smoked up, may be
tilted without being
extinguished, and is
easy to clean.

You will never be satis-
fied with another lamp
after you have seen
the clear white light of
the Hailwood.

Our Circular gives the
details.

Send for a Copy.

Ackroyd & Best L"

BEACON WORKS,
MORLEY, YORKS.