May 23, 1913.

THE COLLIERY GUARDIAN.

1071

COUNTY BOROUGH OF DEVONPORT.

The Devonport Corporation Electricity

Committee invites TENDERS for the supply of 6,OOOtonsof STEAM
COAL, delivered in cargoes of from 400 to 800 tons, for a period of 12 months
ended 30th June, 1914.

Particulars and form of tender may be obtained on application to J. W.
Spark, Borough Electrical Engineer, Newport-street, East Stonehouse,
Devon.

Tenders must be delivered, sealed and endorsed “ Tender for Electricity
Works Coal,” on or before noon 2nd June, 1913.

Municipal Offices, Devonport,	R. J. FITTALL,

16th May, 1913.	Town Clerk.

Tenders are invited for the Machinery
and PLANT on the MINERA MOUNTAIN LEAD and BLENDE
MINES, situated about one mile to the south of the Minera Mine, near
Wrexham.

The Plant comprises several Winding Engines, Boilers, Compressor,
Dressing Machinery, and Plant, &c., &c.

Applications to be addressed to Capt. M. FRANCIS, Halkyn, Holywell,
North Wales, to whom sealed tenders are to be sent on or before the 31st
inst.

The highest or any other tender not necessarily accepted.

DEWSBURY CORPORATION ELECTRICITY WORKS.

Tenders are invited for the supply and
delivery of STEAM COAL for the Electricity Works, Bradford-road,
Dewsbury, for twelve months. Quantity required 4,500 tons.

Specification and form of tender, in duplicate, to be obtained from the
undersigned, and to be returned not later than midday June 2nd, 1913,
addressed to the Chairman, Electricity and Tramways Committee, Bradford-
road, Dewsbury.

The Corporation do not bind themselves to accept the lowest or any tender.

May 20th, 1913.	R. H. CAMPION,

Borough Electrical Engineer.

THE ROYAL BOROUGH OF KENSINGTON.

COAL AND COKE.

The Council of the Royal Borough of

Kensington are prepared to receive TENDERS for the supply of
from 700 to 900 tons (more or less), at the option of the Council, of Welsh
SMOKELESS COAL (Aberdare), to be delivered at the Public Baths and
Washhouses, Lancaster-road, North Kensington, during the twelve months
commencing the 25th day of June, 1913, and also for the supply and delivery
of such quantities of COAL and COKE as may be required by the Council
at the Town Hall, Depots, Public Libraries, &c., during the same period.

Proposals must be made upon and strictly in accordance with the printed
form of tender, which may be had on application at the Town Hall, Ken-
sington, where also further particulars can be obtained.

Parties tendering will be required to make a declaration that they pay the
rates of wages and observe the hours of labour recognised by associations of
employers and trade unions and in practice obtained in the district in which
the work is to be executed, and penalties will be enforced for any breach of
such declaration on the part of the Contractors.

No sub-contracting will be allowed, either for the delivery of the coal or
coke or for anv other purpose.

Tenders sealed and endorsed “ Tender for Coal ” or ° Tender for Coke ”
(as the case may be) must be delivered at the Town Clerk’s Office not later
than twelve o’clock noon on Tuesday, the 3rd June, 1913.

The Contractors will be required to enter into a written contract and to
provide two good and sufficient sureties for the due performance thereof.
The contract deed will be prepared at the expense of the Council.

The Council do not bind themselves to accept the lowest or any tender,
and reserve to themselves the right to accept a tender or tenders in respect
of any individual quotation contained therein.

Town Hall,	By order,

Kensington, W.,	WM. CHAMBERS LEETE,

19th May, 1913.	Town Clerk.

MANCHESTER CORPORATION GAS WORKS.

TENDERS FOR COAL AND NUTS.

rphe Gas Committee of the Corporation
JL of Manchester are prepared to receive TENDERS for the supplv of
th^ir requirements of SCREENED COAL and SCREENED NUTS
(UNWASHED) during one or two years at their Gaythorn, Rochdale-road,
Bradford-road, and Droylsden Works, delivery to commence on the 1st day
of November, 1913.

The tender must state at what colliery the material offered is raised, and
give the size of the mesh of the screen over which it is passed, with the angle
of inclination of the screen.

Printed forms of tender may he obtained on application (in writing only)
to Mr. Fredk. A. Price, Superintendent, Gas Department, Town Hall,
Manchester, and tenders endorsed “ Tender for Coal or Nuts,” as the case
may be, must be delivered at the Gas Department, Town Hall, Manchester,
before 10 o’clock on Monday morning, the 2nd June, 1913, addressed to the
Chairman of the Gas Committee.

The Gas Committee do not bind themselves to accept any tender, and
reserve the right to divide any offer as they may deem advisable.

Town Hall,	By order.

Manchester,	THOMAS HUDSON,

22nd May, 1913.	Town Clerk.

TUBES & FITTINGS. IRON AND STEEL.

Tubes for Gas, Water, Steam, and Compressed Air.
Electric Tramway Poles, Pit Props, High Pressure Steam Mains, &c.

JOHN SPENCER LTD., Globe Tube Works, Wednesbury

J. W. BAIRD AND COMPANY

PITWOOD IMPORTERS,

WEST HARTLEPOOL,

YEARLY CONTRACTS ENTERED INTO WITH COLLIERIES

OSBECK & COMPANY LIMITED,
PIT-TIMBER MERCHANTS,
NEWCABTLE-ON-TYNE.

SUPPLY ALL KINDS OF COLLIERY TIMBER.
Telegrams—•• Osbeoks, Newoastle-on-Tyne.”

V For other Miscellaneous Advertisements see Last Whitt
Page.

W WUmj -tamlian.

LONDON, FRIDAY, MAY 23, 1913.

The Home Secretary has appointed Thomas
Brown, Joseph Hall, Rees Morgan, George
Rankin and Thomas Waldin to be sub-inspectors
of mines.

At a meeting of the South Wales Conciliation
Board on Monday, it was decided to recognise a
fourteen days’ notice in the coalfield.

The annual council meeting of the Northum-
berland Miners’ Association has been held during
the present week. Mr. Burt has declined to
reconsider his resignation, but has consented to
act in an advisory capacity.

The Cumberland enginemen have, by a large
vote, decided to strike for a general eight hours
day.

At a prolonged conference in Glasgow this
week of Scottish miners’ delegates, it was agreed
to take a ballot of the men on the question of

raising the weekly contribution of the men to
the fighting fund from 6d. to Is.

The Mining Machinery Exhibition will be
opened at the Agricultural Hall, Islington, on
the 29th inst., by the Earl of Ellesmere. The
exhibitors number over a hundred.

A meeting of the Scottish Board of Concilia-
tion is to be held in Glasgow on the 26th inst.

A committee of Cumberland colliery owners
and surfacemen’s representatives sat at
Workington, last week, to consider a series of
demands for a uniform wage, shorter hours on
Saturday, and overtime pay for surfacemen, and
the regulation of apprentices’ wages. The
committee failed to agree, and the several
matters were referred to the neutral chairman of
the Conciliation Board.

The Dover ratepayers have voted against the
proposal to construct a new coal dock.

Meetings of the Mining Association and the
Miners’ Federation of Great Britain were held at
the Westminster Palace Hotel on Wednesday to
consider the new draft general regulations. The
joint negotiations^will be completed to-day, it is
anticipated, and after that the coalowners and
the miners’ representatives are to meet the
Home Secretary or Under-Secretary at the
Home Office, on a date which has not yet been
finally agreed, in order to report to him as to
points on which the parties are in agreement.

Owing to the growth of the 'work of the
Labour and Commercial Department of the
Board of Trade, Gwydyr House, Whitehall, can
no longer accommodate the whole of the staff;
and the department presided over by Sir George
Askwith, the Chief Industrial Commissioner,
has been moved to Old Palace-yard, opposite
the House of Lords. The Labour Department
will continue to occupy Gwydyr House.

On Wednesday a large meeting of Midland
manufacturers engaged in the iron and allied
trades, including wrought iron tubes, iron fencing
and other industries, was held to consider the
railway companies’ notice of 4 per cent, increase
in traffic rates. Great indignation was expressed
at the proposal, which, it was explained, would
really amount to 8 per cent, in many industries,
because raw materials in the iron trade would
be taxed 4 per cent., as also the manufactured
products. •

The draft general regulations have been
further considered at conferences of the masters
and men this week.

A drastic report on the Cadeby explosions has
been presented to the Miners’ Federation.

The statement made by Mr.

Incandescent H. L. Doherty, at the Savoy
Gas and Hotel, last week, that not more
Benzol. than 5 per cent, at the outside,
in many places not more than
2 per cent., of coal gas is burnt in open-flame
burners, will come as a revelation to many who
have not realised the rapid progress which
has been made during the last few years in
incandescent lighting.

The battle between electric and gas lighting
has been severe and full of surprises on both
sides, the most recent probably being the
revolution in opinion in regard to their relative
hygienic influence on the atmosphere of inhabited
rooms. There was a quite natural preconceived
notion that the electric filament lamp must of
necessity be healthier than the gas flame, as the
former did not consume the oxygen of the air or
contaminate it with the products of combustion.
The principal results of the combustion of coal
gas are carbon dioxide and water vapour, and
the percentage of the former present in the

atmosphere of a room for many years supplied
the standard of ventilation.

It was laid down as a general principle of
sanitation that the atmosphere of a room ought
not to contain more than six parts per thousand
of carbon dioxide, on the ground that a person
entering such an atmosphere from the fresh out-
side air would notice a distinct odour. As a matter
of fact, this relation between the condition of
breathed air and its carbonic dioxide content, which
no doubt existed under more primitive lighting
conditions, was a useful coincidence, and not a
case of cause and effect. Naturally, however,
this explanation was commonly overlooked, and
the presence of carbon dioxide above the normal
became to be considered as a positive evil. In
an article on “ Gas Lighting ” in the “ Britannica
Year Book” for 1913, just published, Prof.
Vivian B. Lewes says:—“The researches of Dr.
S. Rideal and others have shown conclusively,
however, that the air in the breathing zone of an
inhabited room lighted by the incandescent gas
mantle is always fresher and less oppressive than
with electric incandescent burners, and that the
increase in carbon dioxide and humidity
which one would expect, is not to be found,
whilst a large decrease in the organic matter
takes place. This is explained by the fact that
the uprush of heated air and products from
the burner draws up the emanations from
the skin and lungs of the occupants, charring
and sterilising any germs and organic matter
that are present, and, reaching the ceiling
at a temperature 12 degs. Cent, higher than
when electric light is used, diffuses so rapidly
through the plaster as to draw in fresh air
below the door of the room, and whilst so
diffusing filters off the carbonised organic matter
and dust on the surface of the plaster, so giving
the blackening that is always found above a gas-
burner, which is often erroneously attributed to
imperfect combustion. Air movement, coolness,
humidity, and reduction in the mass action of
pathogenic bacteria are now recognised as being
of far greater importance to health than the
chemical purity of the air; and the convection
currents and change of air set up by the heat of
the incandescent gas burner lead, it is held, to
a fulfilment of these requirements far better
than the electric light.”

This aspect of incandescent gas lighting
affords some justification for Mr. Doherty’s
proposal that the Government should abolish the
14-candle power illumination standard, so as to
allow gas manufacturers to remove the benzol
from town gas and supply it for use as motor
spirit. The benzol is of little value when the
gas is burnt in incandescent burners, and it has 1
been calculated that about 12 million gallons of
benzol per annum could be recovered from
London gas alone, and perhaps further 60 million
gallons per annum throughout the United
Kingdom. One merit which Mr. Doherty’s
scheme for partially meeting the heavy demand
for motor spirit is that it is capable of being put
into operation at a comparatively small cost, and
with very little delay. The present consumption
of petrol in this country is estimated to be at the
rate of about 100 million gallons per annum, so
that, even allowing for a prodigious increase
in the near future—which is by no means
improbable—Mr. Doherty’s proposed source of
benzol supply would form a valuable adjunct.

In addition, it would be a step in the direction
of conserving our national coal resources by
obtaining an additional value from each ton of
coal consumed in the production of town gas.
The urgent need of rigid economy in this and
similar directions has recently been insisted upon
in articles on “The Future of British Fuel”1