March 1, 1918.

423

THE COLLIERY GUARDIAN.

4 BLAKEBOROUGH

BURN LOW GRADE

COAL

: : on your Boilers by installing a : :

Keith Induced Draught Fan

James Keith & Blackman Co. Ltd.

27, FARRINGDON AVENUE, E.C. 4.

Branches

CARDIFF, NEWCASTLE, BIRMINGHAM, EDINBURGH, etc.

: COAL BILL REDUCED :

EVAPORATION INCREASED

JOEL-FORS Patent

Miners’ Electric Lamps

APPROVED BY H.M. HOME

OFFICE.

SALE OR
HIRE.

ARRANGE
TRIALS.



TYPE 403 M.S.

LIGHT.—Candle Power for 12 Hours,

WEIGHT.—lb.

CELLS UNSPILLABLE AND INTERCHANGEABLE.

JOHN MILLS & SONS

NE WCASTLE-ON- TYNE.

“MILLS, NEWCASTLE.” Established 1828

HAMMERS

WEDGES, PICKS, FORGINGS, &c.,

------♦ FOR ♦—--

COLLIERIES, QUARRIES &

WORKS.

BEST FOR ALL PURPOSES.



Manufactured by

The Provident Steel Tool Co

LIMITED,

Brown Street, SHEFFIELD.

VALVES

J. BLAKEBOROUGH & SONS U?

YORKS.