coal trade bulletin - Clpdigital.org

60 THE COAL TRADE BULLETIN.
SELF-CONTAINED PORTABLE ELECTRIC
MINE LAMPS.
(CONTINUED FROM PAGE 46)
The incandescent lamp renewal already has been
expressed in figures, in connection with the reliability
of service. Excellent results have been
obtained, the average life of the lamps being approximately
1,000 hours.
From the lamp designs and the lamp service as
described above, it can be seen that the development
of the portable electric mine lamp has made
rapid progress during the last few years, and since,
up to this writing, no explosions have occurred
wherever installations have been made, it can be
said without exaggeration that the electric mine
lamp is a success and that it is bound to be
adopted more and more.
Of course, as is the case with any new appliance,
objections have been raised against the electric
mine lamp, especially, because it does not detect
inflammable gases as the Davy safety lamp
does. There is no doubt that this detail will be
overcome in the near future, as there are several
principles v.hich can be used for the construction
of mine gas detectors. In fact, the German government
only lately has ordered several hundred
of these devices, constructed in accordance with
the directions of Dr. F. Haber on the acoustic principle
and know as "mine gas whistles." These
will be distributed to the various mines for a thorough
trial.
The tipple at the Hugheston mine of the
Hugheston Coal & Coke Co., Hugheston, W. Va.,
was burned May 5 with a loss of $5,000.
Position 'Wanted
Man thoroughly experienced in coal and coke
business desires position. Traffic, preferred.
Address W., care THE COAL TRADE BULLETIN.
7-15
YOU CAN'T
LOOK INTO THE
EARTH, but WE
CAN get you a large
clean core of all strata un­
der your land tc be ex­
amined in broad daylight.
. No Guess Work. .
The J. A. BRENNAN DRILLING CO.
Home Office, SCRANTON, PA.
\ Field Office, 30 Carson St., PITTSBURGH, PA.
Contractors (or DIAMOND DRILLING, OIL AND ARTESIAN WELL DRILLING
RESCUE CAR ITINERARIES.
Arrive Leave Address
SEATTLE CAK.
May 16 May 24 Seattle, Wash.
May 24 June 4 Roslyn, Wash.
BILLINGS CAK NO. 5.
Arrive Leave Company Address
May 18 May 23 Car Repairs.... Spokane, Wash.
May 25 May 30 Bear Creek Coal Co.
Montana Coal & Iron Co.
International Coal Co.
Bear Creek, Mont.
June 1 June 6 Anaconda Copper Mining Co.
Smokeless and Sootless Coal
Co Washoe, Mont.
June 8 June 13 Northwest Improvement Co.
Red Lodge, Mont.
The Miners' Examining Board of the State of
Illinois will hold meetings, during the remainder
of the month of May, according to the folloyving
schedule: Willisville, May 19; Belleville, May
20; Staunton, May 22; Eldorado, May 26; Benton,
May 27; Herrin, May 28-29. The members of the
examining board are Edward Maher, president;
John Knies and Nicholas Cowell, secretary.
Alex. Howat, president of the United Mine Workers
of District No. 14, comprising Kansas, resigned
following the reading of a report of President
John P. White that Howat and Secretary-Treasurer
Fred Holt of District No. 21, comprising
Oklahoma and Arkansas had accepted $20,000 from
mine operators of the districts for making favorable
settlements.
Burglars broke into the offices of the United
Mine Workers at Indianapolis, lnd., May 3, and
looted the desks of stamps and other supplies.
Mr. James Findlay has resigned the position of
manager of the Maple Leaf coal mine, situated
near Frank, southwestern Alberta, Canada.
General Map of the Bituminous
Coal Fields of Pennsylvania.
1909- IO.
Showing the location of the mines, and giving
the names and post office addresses of the Operators
and Purchasing Agents. With which is
combined a Geological, Railway and Waterway
Outlet Map of the entire Appalachian Coal Field
from Pennsylvania to Alabama, giving the location
and extent of all the Coal Districts. Published
and for sale by BAIRD HALBERSTADT,
F. G. S., Geologist and Engineer, POTTSVILLE, PA.