April 3, 1914.

THE COLLIERY GUARDIAN

765

FERRO-CONCRETE

CONSTRUCTIONS.

Buildings of every description, Water Towers,
Bridges, Pile Foundations, Headgears.

TME

Yorkshire Hennebique Contracting Co. Ld.,

Kirkstall Road, LEEDS.

NEWTON, CHAMBERS

& Co. Ltd.,

THORNCLIFFE IRONWORKS, near SHEFFIELD.

ESTABLISHED 1793.

TANK in Cast Iron or Steel. GENERAL CASTINGS, CONSTRUCTIONAL STEELWORK

CONTRACTORS to the ADMIRALTY, WAR OFFICE, and CROWN AGENTS for the COLONIES.

Telegrams—“NEWTON, SHEFFIELD. ’	Telephone No. 2200 Two Lines.

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 jusi
been published by the South Wales Institute of Engineers. It consists o?
81 pages of printed matter with Sections and Diagrams. The large drawing!
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.	(E) Ammanford.

(B)	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 30in., 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 limited number of the above are for sale, and may be obtained from

The Secretary, The South Wales Institute of Engineeri,

CARDIFF.

Price JB1 la., Postage Extra.

“The South Wales Coalfield,” Part I., by Mr. H.K. Jordan, published
in 1908, price £2.2s., dealt with the eastern half of the Coalfield, and may b»-
obtained from the (•’e^i”

ALFRED ALLEN & SON

MaRers of	LTD.

COLLIERY AIR PIPES

IMF* and COLLIERY TUBS

in IRON, STEEL and WOOD.

Lower Gornal, nr. Dudley.

Telegram!—“Allen, Lower Gornal.” Telephone—106 Dudley

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for
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Price
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Specialities: LATHES & SAW BENCHES.

First class at competitive prices.

ROWLAND C. FOOT & Co. 11, Queen Victoria St., London, E.C

JUNCTION BOXES Forc’wl 06

For underground use. Strong, substantial Cast
Iron Boxes with best Brass Fittings, at very
moderate cost. Write for further particulars to—

<J. Crawford & Sons Ltd.,

Bonner's Field Engine Works, SUNDERLAND.

THEE

Demy Octavo, 176 pages, Cloth.	Price 6s. 3d-

45 Original Photographs and Diagrams. (post free).

World Year Book

For 1914.

TWENTY-EIGHTH YEARLY EDITION, CONTAINING 1,900 PACES.

Edited by MAJOR EVAN R. JONES.

PORT DIRECTORY OF THE WORLD.

This section occupies 600 pages of the Year Book, and gives particulars
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MAP OF THE WORLD.

The Shipping World Year Book Map of the World, specially
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SOME OF THE OTHER CONTENTS OF THE YEAR BOOK.

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Miners’ Nystagmus:

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By T. LISTER LLEWELLYN M.D., B.S. (Load.), &c.

WITH A PREFACE BY

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DOUGLAS KNOCKER, M.B.. Barrister-at-Law.

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208 pages f’cap folio. Over a hundred illustrations and 60 plates (coloured). PRICE IQs. IQs. 7<1. post free).

RECORD OF

FIRST SERIES OF THE

BRITISH COAL DUST EXPERIMENTS

CONDUCTED BY THE

COMMITTEE APPOINTED BY THE MINING ASSOCIATION OF GREAT BRITAIN.

A Record of the Experiments carried out during 1908 and 1909 at the Altofts Experiments Station.

PUBLISHED BY —

THE COLLIERY GUARDIAN CO. LTD., 30 & 31, Furnival Street, Holborn, London, E.C.