February 4, 1916.

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THE COLLIERY GUARDIAN.

239
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Mining BOOKS

At Tremendous Reductions ! New Books at 25 per cent.
Discount! Books on Mining, Technical and all other Sub-
jects. Sent on Approval. State Wants. Send for Lists.
Books Purchased. W. & G. FOYLE, 121-123, Charing
Cross Road, London, W.C.

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OXYGEN.

The BRITISH OXYGEN Co. Ld.

The oldest and most extensive Oxygen producing
and distributing business in the World.

Factories in all industrial Centres equipped
with modern plants producing Oxygen of
unrivalled quality for use with RESCUE
APPARATUS.
ADDRESSES OF THE COMPANY’S WORKS :

LONDON ______ Elverton St., Westminster, S.W.

,,	...... Tunnel Avenue, East Greenwich,

BIRMINGHAM ... Saltley Works.	[S.E.

WOLVERHAMPTON Lower Walsall Street.
CARDIFF ______ East Moors.
MANCHESTER.... Great Marlborough Street.

BIRKENHEAD.... Bromborough Port.

SHEFFIELD .... Celtic Works, Savile Street.

NEWCASTLE-ON-

TYNE ______ Walkbr Gate.

GLASGOW______ Rosehill Works, Polmadie.
SYDNEY ______ N.S.W.

JOHN STANIAR & CO., Manchester, Eng.

Wire Weavers & Metal Workers.

Established over 100 Years.

_________
_________

------ EVERY REQUISITE. ------------------

GAUZES in Silk and Wire.

BRUSHES in Bristle, Weed, Fibre or Steel, for every known
make of Brush Machine. .

PERFORA TED PL A TES in Iron, Steel, Zinc, Brass, Copper.

GUARDS for Engines, Stores, Machines, Strapping, Lifts, &c.

AWARD MEDALS—Japan-British 1910, Franco-British 1908.

Telegraph—“ Gauze, Manchester.”	Telephone—City 3306.

SPECIALTIES.

Rocker Bar Furnaces

For maximum efficiency with natural draught.

Twin-Door Furnace Fronts

For large Boilers, side-firing, smoke=burning.

Sectional Back Bridges

New economic composite type ; fusion-proof.

Tub-Controllers

For all sizes of tubs or tipping trucks.

Wire Rope Cappels

The new safety quick hosing system.

Visual Signal Indicators

For all winding conditions.

J. & J. NEIL & CO., Engineers,

93, Hope Street, GLASGOW.



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British Manufacture Best Quality at Lowest Prices o
Every description either separate or in cases.

SPECIAL 12 in. CARDBOARD PROTRACTOR,
reading to |°, at 2«. Gd., postage Gd.

ILLUSTRATED CATALOGUE ON APPLICATION.

WU UARI I NR Mathematical Drawing and Surveying

■ ■■AiiLinUj Instrument Manufacturer,

47, Finsbury Pavement, London, E.C.

Established 1851.	Factory—HACKNEY, E.

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British Insulated & Helsby Cables Ld.,

ELECTRICAL CABLE MAKERS & ENGINEERS.

REOD. TRADE MARK.

Works: Prescot, Helsby, & Liverpool.

SEE LARGE ADVERTISEMENT EVERY FOURTH WEEK.

A COPY OF OUR

736 pp. CATALOGUE,
containing particulars of

Colliery Engineers’ Stores,
will be gladly sent upon
receipt of application.

Willcox’s Oils

Our special Cylinder, Crank Chamber,
Turbine, &c., Oils are dependable and
economical for all Colliery lighting and
power plants. Let us quote for YOUR
requirements.

Prompt Deliveries
from large stocks.

W. H. WILLCOX & CO. LTD., 32 to 38, Southwark Street, London.

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Semet-Solvay Coke Ovens

SECTION OF OVEN

SHOWING SOLID CONSTRUCTION.

Strongest in Design.

Separate sets of flues to each oven.
Very low Maintenance Cost.

“DIRECT” AMMONIA RECOVERY PLANT,
giving increased yield of Sulphate, with less
Labour, and a saving in Steam consumption.

THE COKE OVEN CONSTRUCTION CO. L!

Howard Chambers, 155, Norfolk Street, SHEFFIELD.