June 6, 1913.

THE COLLIERY GUARDIAN.

1255

OXYGEN The KNOWLES OXYGEN
Head ^Office : WOLVERHAMPTON,
&»at BROMBOROUGH PORT, nr. Birkenhead,

GUARANTEE ALL THEIR

GAS 99% PURE.

WELDING & CUTTING ||VDf II
PLANTS SUPPLIED. HI | UliOllElf a

THE SOUTH WALES COALFIELD. PART II.

By Henry K. Jordan, F.G.S. (Past President and first
Gold Medallist of the South Wales Institute of Engineers).

This Paper, which deals with the western part of the Coalfield, has just
been published by the South Wales Institute of Engineers. It consists of
81 pages of printed matter with Sections and Diagrams. The large drawings
are issued separately and comprise

1.	A Horizontal Section across the anthracite region of Llandybie and

Pant-y-ffynnon, and via the Dulais Valley to the sea at Swansea. It
is drawn to a scale of six inches to one mile, is 8 ft. in length, mounted
on linen, and geologically coloured.

2.	Comparative Sections of the Lower Measures in the following areas —

(A)	Neath Valley.

(B)	Swansea Valley.

(C)	Brynamman District.

(D)	Amman Valley.

These are drawn on one sheet,
a scale of 200 ft. to 1 in.

(E)	Ammanford.

(F)	Loughor Valley.

(G)	Gwendraeth District.

(H)	Gwendraeth District.

35 by 30in., mounted on linen, to

3. A Map of Swansea District, on a scale of 6 in. to one mile, showing
the outcrops of the coal seams.

A limited number of the above are for sale, and may be obtained from

We make a Speciality of HEYWOOD & BRIDGE'S

PATENT FRICTION CLUTCHES and
HAULING INSTALLATIONS.

We are supplying our

Hauling Gears to
the leading Gold
Mines, Collieries,
Quarries, Brickworks,
etc., etc.,
and are continually
receiving repeat
orders.

(Electrical and Mechanical, Vertical and Horizontal.)

4







The illustration! is
of Winding Drum
and Clutch for
200-h.p Engine.'

We have?thousands
of our Clutches
at work on all kinds
of drives.

Send for Catalogues
free.

The Secretary, The South Wales Institute of Engineers,
CARDIFF.

Price £1 Is., Postage Extra.

"The South Wales Coalfield,” Part I., by Mr. H.K. Jordan, published
in 1908, price £2.28., dealt with the eastern half of the Coalfield, and may be
obtained from the Secretary.

Patentees & Sole Makers, DAVID BRIDGE ‘ CO. LD., Haulage Works,
CASTLETON. MANCHESTER.

NEW PERMITTED LIST.

WELLING POWDER.

For Ripping and Coal Getting.

UPLEES POWDER.

For Coal Getting and Light Ripping.

Two Safety Explosives for

all classes of work in the mine.

We also supply

FAVERSHAM POWDER, REXITE, NORMANITE & SWALITE.

THE COTTON POWDER CO. LTD.,

24, Walbrook, LONDON, E.C.

Established 1830.

JOHN BAKER & SON, Thompson Street, BILSTON.

MANUFACTURERS OF
Plain or Barred Coal Baskets, COLLIERY AIR PIPES,
Corner Plates, Buckets,

AND EVERY DESCRIPTION OF SHEET METAL WORK.

Colliery Baskets (Barred).

Enquiries Solicited.

1

Colliery Buckets.

Colliery Baskets (Plain).



Corner Plates.