September 17, 1915.

THE COLLIERY GUARDIAN.

595

______

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. POYLE, 121423, Charing
Cross Road, London, W.C.

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 _____

BIRMINGHAM
WOLVERHAMPTON

Elverton St., Westminster, S.W.
Tunnel Avenue, East Greenwich,
Saltley Works.	[S.E.

Lower Walsall Street.

CARDIFF _______ East Moors.

MANCHESTER____ Great Marlborough Street.

BIRKENHEAD____ Bromborough Port.

SHEFFIELD ____ Celtic Works, Savile Street.

NEWCASTLE-ON-

TYNE _______ Walker 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 Furnaca Fronts

. For large Boilers, side-firings smoke-burning.

Sectional Back Bridges *

New economic composite type; fusion-proof.,

Tub-Controllers

For all sizes of tubs dr tipping trucks.:

Wire Rope Cappeis

The new safety quick hosing system. ; «

Visual Signal Indicators

For all winding conditions.

J. & J. NEIL & CO., Engineers,
93, Hope Street, GLASGOW.



________	_______

___________________________________________

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

SPECIAE 12 in. CARDBOARD PROTRACTOR,
reading to i°, at 2«. 6d., postage 6d.

ILLUSTRATED CATALOGUE ON APPLICATION.

W|| UADI IN ft Mathematical Drawing and Surveying

■ n. nMnMIiWj Instrument Manufacturer,

47, Finsbury Pavement, London, E.C.

Established 1851.	Factory—HACKNEY, E.

British Insulated & Helsby Cables Ld.,

ELECTRICAL CABLE MAKERS & ENGINEERS.

RBGD. TRADE MARK.

Works: Prescot, Helsby, & Liverpool.

SEE LARGE ADVERTISEMENT EVERY FOURTH WEEK.

______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIHIIIIIIIIIIIIIIIIIIIHHlIlllllllllllllll^



Elliptic Full-way Cock
costs no more than an elongated-
way cock, and is equal in service
to a round-way full-bore cock.

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

CLEAR-FLOW
BORE.”

Write
TO-DAY
for detailed
particulars
and
prices.

1111111111111111lllllll|llllllllll!|IIHIIIIII|l|||||l||llllll!|||||||||||l|||||||||||i|||ll||llll|l||lllllllll||llllll||||||ll|||||ll||||||||||||||||||||l!llllll||||||||||||||||||||||||||||||||l||ll|||||lllllllllll||||||||||||||||||||||||||||||||||||lr

_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

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.