August 13, 1915.

THE COLLIERY GUARDIAN.

307

--- THE “PEARSON” LAMP ---

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Telegrams—“PELECTLYTO, BOCHURCH, LONDON”
Telephone-119 STRATFORD.

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This Lamp has been designed for combined
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Time taken for changing Bulk, 5 secs.

PEARSON’S ELECTRIC
MINERS’ LAMP CO. LTD.,

Victoria Works, Marshgate Lane,
STRATFORD, LONDON, E.

A British Production entirely as to both Capital and Labour.

Melling’s Patent Automatic

EXPANSION GEAR

for Winding Engines .

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SCOTLAND.

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WORSLEY MESNES IRONWORKS LTD.,

Telegrams—
“ENGINES, WIGAN.”

WIGAN.

Telephone-
No. 46 WIGAN.

STEEL WIRE ROPES.

MINING ROPES OUR SPECIALITY.

C. A. FORSLIND & SON,

Pit Props and Mining Tim ber Importers,
Fountain Terrace, West Hartlepool.
' Telegrams: ‘‘Forslind, West Hartlepool.” Telephone-: No. III.

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D. Llewellin Evans,

PROPRIETOR OF THE

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oo, BUTE ST.
CARDIFF.

AGENT FOR

tTobers Explosives,

THE SOUTH WALES COALFIELD. PART II.

By Henry K. Jordan, F G.S. (Past Presiient and first

Gold Medallist of tne 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 o£ 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 t—

(A.) Neath Valley.	(E; Ammanford.

(Bi Swansea Valley.	(F) Loughor Valley.

(C)	Brynamman District.	(G) Gwendraeth District.

(D)	Amman Valley.	(H) Gwendraeth District.

These are drawn on one sheet, about 35 by 30 in., mounted on linen, to
a scale of 200 ft. to 1 in.

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

the outcrops of the coal seams.

A limbed number of the ab->ve are for sale, and may be obtained from

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

Price £1 Is., Postage Extra.

•’ The South Wales Coalfiel, ,” Part I., by Mr. H. K. Jordan,published
in 1908, price £2 2s , dealt with the eastern half of the Coalfield, and may be
obtained from the Secretary.

THE ISCA FOUNDRY COMPANY LTD.,

RAILWAY PLANT & GENERAL ENGINEERS,
Switches, Grossings, Turntables, Vater Cranes, Girders, Bridges,
Roofs, Pipes, Pumps, Wagons, Tanks, Engines, Boilers, Cranes,
Works: NEWPORT, MON.

Lonpon Office : 16 & 17 Devonshire So, Bishopscate St.. E.C.

ip]
ml

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CEMENTATION

Shaft Sinking and Drift Driving
through any kind of Water-bearing
Measures, by Improved Patent Cement-
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Concrete Lining a speciality.

Feeders of water existing In Shafts or
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Seventeen Shafts already cemented in
England In the last two years.

Complete Estimates given on application.

ALBERT FRANCOIS,

Whitehouse Chambere, DONCASTER.