February 25, 1916.

THE COLLIERY GUARDIAN.

377

No. 58.

TH E COLLI ERY GUARDIAN

MONTHLY LIST OF RECENT GOAL LITERATURE

I.—General.

Relation of Mine Officers to the Consumer. R. Z.
Virgin. “ Coal Tr. Bull.,” Jan. 15, p. 57. (Paper
read before the West Virginia Coal Mining Institute.)

Coal Mining in British Columbia in 1915. “ Can. Min.
JI.,” Jan. 15, p. 39.

Coal Mining in'Alberta during 1915. . J. T. Stirling.
•“ Bull. Can. Min. Inst.,” Jan., p. 20.

Nova Scotia Coal Production during 1915. F. W. Gray.
“ Bull. Can. Min. Inst.,” Jan. p. 10.

Reviews of Coal Mining in 1915. “ Coal Age,” Jan.-8,
p. 38. (Various United States coal fields.)

The Efficiency Records at Collieries. J. H. Cunningham.
“ BulE Can. Min. Inst.,” Jan., p. 80.

The Use of Welding Outfits at Mines, Mills, and
Smelters. “ Min. Eng. World,” Jan. 22, p. 151;
.10 fig.	.. .

The Coal Trade of Nova' Scotia in 1915. F. W. Gray.
“Canad. Min. Journ.,” Jan. 1, p. 6.

Relation of Governments to Mining. H. V. Winchell.
“ Canad. Min. Journ.,” Jan. 1, p. 14. (Paper read
before Intern. Eng. Cong.)

Evaluating Coal Properties in Western Canada. R. W.
Coulthard.. “ Canad. Min. Journ.,” Jan. 1, p. 21.

Conservation and Economic Theory. R. T. Ely. “ Trans.
Amer. Inst. Min. Eng.,” Feb., p. 211.

Conservation of Iron Ore. C. K. Leith. “Trans.

Amer. Inst. Min. Eng.,” Feb., p. 225.

Chief Sources of Accidents in the Witwatersrand Mines.
C. E. Hutton. “ Journ. Chem. Metall. Min. Soc.
S. Africa,” Nov., p. 95.

The Utilisation of Energy from Coal. W. A. Bone.
“ Colliery Guard.,” Jan. 28, p. 170; Feb. 4, p. 220.
(From lectures at the Royal Instn. of Gt. Britain.)

Mine Accidents and Uniform Records. A. H. Fay.

. “ Colliery Guard.,” Feb. 4, p. 217; Feb. 11, p. 267;
Feb. 18, p. 323. (From a paper read beofre the Second
Pan-Amer. Scient. Congress.)

Mining Extension Work of the University of Pittsburg.
H. B. Meller. “ Coal Tr. Bull.,’ Jan.1, p. 40. ( Paper
read before Coal Min. Inst. Amer.)

III.—Geology.

Geological Map of Prussia and Adjacent Federal States,
Scale 1 : 25,000 (Geologische Karte von Preussen und
benachbarten Bundesstaaten im Massstab 1 :z25,000).
No. 191. Publ. by Kgl. Preussischen Geologischen
Landesanstalt. (Sheets : Hermannsburg, Siilze, and
Eschede.)

Classification of the Lower Keuper in Thuringia (Zur
.Gliederung des untern Keupers in Thuringen).	—.

Naumann. . “ Jahrb. Geol. Berlin,” vol. 35, pt. 1,
No. 2, p. 292; illus.

On the Modifications of the Muschelkalk. and Keuper in
the West of the Treves-Luxemburg Basin on the
Southern Border of the Ardennes (Ueber die Veran-
derungen des Muschelkalkes und Keupers im Trier-
'Luxemburger Beckens nach Westen am Siidrande der
Ardennen). —. Goetz. “Jahrb. Geol. Berlin,” vol.
35, pt. 1, No. 2, p. 336; illus. *

The Age of the Halle Brown Coal Deposits (Das Alter
der Halleschen Braunkohlen). —. Scupin. “ Jahrb.
Geol. Berlin,” vol., 35, pt. 1, No. 2, p. 282; illus.

The. German Culm Formation (Beitrage zur Kenntniss
des deutschen Kulms). —. Hiiffner. “ Jahrb. Geol.
Berlin,” vol. 35, pt. 1, No. .3, p. 448; illus. (Fauna
in the Hessian. Hinterland and Hartz.)

Geological Conditions and Mining Activity in Poland
(Die geologische-montanistischen Verhaltnisse und
fiber die Bergbautatigkeit in Polen). Feb.. 1, p. 57;
illus.

The Christnacht Deep Boring near Kattowitz and New
Marine Fauna in the Upper Silesian Carboniferous
(Die Tiefbohrung Christnacht bei Kattowitz, ein
neuer Aufschluss mariner Fauna im oberschlesischen
Karbon). —. Quitzow. “ Jahrb. Geol. Berlin,” vol.
35.,’pt. 1’, No: 3, p. 575.

Browm Coal Deposits in the Territories Occupied by
Germany and her Allies in West, South, and East
(Die Braunkohlen vorkommen der von den Deutschen
und ihren Verbiindeten besetzten Gebiete im
Westen, Osten, und Sfiden. —. Berg. “ Braunk.,”
Jan. 28, p. 509; illus. (Deposits in Belgium and the
occupied ^portions of Russia and Serbia.1

Classification of Mineral Coals from the Technical and
Mining Law Standpoint (Unterscheidung der Mineral-
kohlen vom technischen und bergrechtlichen Stand-
punkte).	—. Donath. “Mont. Rdsch.,” Jan. 1,

p. 1; Jan. 16, p. 32.	.

The Connection Between the North-Western European
Coal Fields. X. Stainier. “Colliery Guard.,”
Feb. 11, p. 263; Feb. 18, p. 325. (From a paper read
before the Manchester Geol. and Min. Soc.)

Pennsylvania Fireclay. L. C. Morganroth. “ Trans.
Amer. Inst. Min. Engin;,” Feb., p. 475.

V.—Mining Technology.

New Points of View in Considering the Workability of
Deposits (Neue Gesichtspunkten zur Beurteilung der
Abbauwfirdigkeit einer Lagerstatte). —. Feuchter.
“ Bergb. u. Hutte,” Oct., p. 117; illus. (Supple-
menting the Hofer formula.)

VI.—Working of Minerals.

Methods of Mining in Lower Connellsville. W. H.
Howarth. “ Coal Age,” Jan. 8, p. 22; 2 fig. (Paper
read before Coal Min. Inst. Amer.)

Mining by Concentration Method. W. H. Howarth.
“ Coal Age,” Jan. 15, p. 1253; 2 fig. (Paper read
before Coal Min. Inst. Amer.)

Brown-Coal Mining in Germany. G. J. Young. “ Trans.
Amer. Inst. Min. Eng.,” Feb., p. 327; 11 fig.

A Puzzle in Mining Costs. J. F. K. Brown. “Coal
Age,” Feb. 5, p. 246; 1 fig. (A comparison of pillar
and stall and longwall working under conditions
unfavourable to either.)

VII.—Boring, Shaft Sinking, and Tunnelling.

Core Drilling at the Hollinger. A. M. Brown. “ Canad.
Min. Journ.,” Feb. 1, p. 76; 3 fig.

The Question of the Electric Hammer Drill (Zur Frage
des elektrischen Bohrhammers). —. Gerke. “ Z.
Oberschl. Ver.,” Nov.-Dec., p. 239'; illus. (Com-
parison with pneumatic hammer drills. Benzine rock
drills.)

VIII.—Explosives, Blasting.

The Relative Efficiencies of Blasting Gelatine and
Gelignite as Used in Hand Drill Stopes in the Gold
i Mines of the Rand. W. S. Simpson. “ Journ. S.
V, Afric. Inst. Engin.,” Jan., p. 120; 4 fig. (Account
of experimental work carried out on behalf of Vogel-
struis Estates and Gold Mines Limited.),

Measuring the Velocity of Detonation in Modern Explo-
sives (Die Messung der Detonations-geschwindigkeit
bei modernen Sprengstoffen). —-. Forg. Z. Schiess.
Sprengst.,” Jan. 15, p. 17; illus.

Separation1 by Gravity in Testing Mine Explosives
(Anwendung der Trennung nach dem spezifischen
Gewicht auf die Analyse von ■ Bergwerksspreng-
stoffen). Storm and Hyde. “ Z. Schiess. Sprengst.,”
Jam 1, p. 7.	.

New Initial Explosives (Neuere Initial-Explosivstoffe).
—. Stettbacher. “ Z. Schiess. Sprengst.,” Jan. 1,
p. 1. (Silver acetylide and its preparation.)

X.	—Surface Arrangements.

Coal Screening and Washery, with Recovery of Pyrites,
at the Mont-Cenis Colliery (Kohlensicht-anlage und
Schlammaufbereitung mit Schwefelkiesgewinnung
der Zeche Mont-Cenis). P. Cabolet. ,“ Gliickauf,”
Jan. 1, p. 1; 3 fig.

XI.	—Winding and Haulage.

Goodman Storage Battery Locomotive. E. C. de Wolfe.
“ Coal Tr. Bull.,” Jan. 15, p. 43; 5 fig.

Ovenspeeding and Overwinding Gear at Edmondsloy
Colliery. J. Wilson. “ Iron and Coal Tr. Rev.,”
Feb; 4, p. 120; 3 fig. (Paper read before the .North
of England Branch of Natl. Assocn. of Col. Man.)

Improvements in Chocks for Colliery Tubs. P. Widdas.
“ Iron and Coal Tr. Rev.,” Feb. 4, p. 126; 2 fig.

(Paper read.before the North of England Branch of the
Natl. Assocn. of Col. Man.)

Storage Battery Locomotives for use in Coal Mines.
“ Black Diamond,” Jan. 15; 5 fig.

New Electric Winding Engines with Flywheel Converter
(Neuere elektrische Forderbetriebe mit Schwung-
radumformer). —. Wolf. “ Z. Dampfk. Betr.,
Dec. 17, p. 419; illus.

Automatic Shaft Gate at Kaindl Mine, Schneeberg
(Selbsttatiger Schachtverschluss mit einer Modifika-
tion fiir tonnlagige Forderung von mehrern Horizonten
und der Verschluss des Kaindlstollens am Schneeberg
im Tirol). —. Staunch. “ Mont. Rdsch.,” p. 7; illus.

■ (Modification for winding from different levels.).

Unattended Accumulator Locomotive Haulage at the
Barbara Mine, Kelcan (Der Betrieb. mit fiihrerlosen
Akkumulatorlokomotiven auf der Barbarazeche in
Kelcan). —. Czaplinski. “ Bergb. u. Hutte,” July,
p. 30; Sept., p. 83.

Winding Engine to Raise a Net Load of Two Tons from
a Depth of 1,300 Metres at the Anna Shaft, Przibram
(Fordermaschine fiir 1,300 m. Teufe und 2,000 kg.
Nutzlast am Annaschacht in Przibram). —. Di vis.
“ Z. Bergb. Betr. L.,” Dec. l,p- 317; illus.

Safety Catches for Hoists (Fangvorrichtungen an Auf-
ziigen). —. Schrader. “ Z. Dampfk. Betr.,” Feb. 4,
p. 35; illus.	■	-

The New Electric Hoist of the North Butte Mining
Company. F. Moeller. “Trans Amer. Inst. Min.
Eng.,” Feb., p. 343; 7 fig.	.

Prussian Rope Statistics for 1914 (Ergebnisse der
preussischen Seilstatistik fiir das Jahr 1914). W.
Roelen. “ Gliickauf,” Jan. 1, p. 5; Jan. 8, p. 32.

The Logic of Trams. J. Gibson. “ Colliery Guard.,”
Feb. 18, p. 314; 4 fig. (From a paper read before the
North of England Inst, of Min. and Meeh. Eng.)

XII.	—Signalling.

Visual and Aural Indicator at Clifton Colliery. “ Iron
Coal. Tr. Rev.,” Feb. 4, p. 123; 3 fig.	'

Mine Telephone Equipment. W. C. Freeman. “Colliery
Guard.,” Feb. 11, p. 266;. 2 fig. (From .“ Coal
Age.”)

XIII.	—Lighting.

Contribution to the Selection of the Most Suitable Type
of Lamp for a Given Lighting Effect (Beitrag zur
Auswahl der gunstigsten Lampenart fiir einen gege-
benen Lichteffect).	—. Glinski. “ E. T. Z.,”

. Jan. 6, p. 2; illus.

Cost of Upkeep of. Electric Cap Lamps. “Colliery
Guard.,” Jan. 28, p. 171. (From “ Coal Age.”)

The Hirsch Portable Electric Lamp. H. H. Hirsch.
“ Colliery Guard.,” Feb. 18, p. 327. (From a paper
read before the Nth. of Engld. Inst, of Min. and
Meehan. Engin.)

XIY.—Ventilation.

Effect of Barometric Pressure to Derange or Stop Venti-
lation. F. C. Cornet. “ Coal Age,” Jan. 22’, p. 159.

Important Features in .Mine Ventilating Fans. H. H.
Valiquet. “ Coal Age,” Jan. 15, p. 123; 2 fig.

Electric Mine Fans (Elektrische Grubenventilatoren).
—. Beck. “ Bergb.,” Dec. 30, p. 796; Jan. 6, p. 1;
illus.'

Mine Ventilating Door. “ Colliery Guard.,” Feb. 4,
p. 231; 1 fig. (From “ Min. and Eng. Wld.”)

XV.-Mine Gases, Testing.

Influence of Atmospheric Humidity on Mine Gas (Der
Einfluss der Luftfeuchtigkeit,auf die Grubenwetter).,
—. Whittome. “ Z. Bergb. Betr. L.,” Jan. 1, p. 1;
Jan. 15, p. 17.

Determination of Methane in Winkler Flasks (Zur
Methanbestimmung im Winkler - Kolben). —.
Fleissner. “ Bergb. u. Hutte,” Sept., p. 81; illus.

Researches on Firedamp. E. Hauser. “ Trans. Amer.
Inst; Min. Engin.,” Feb., p. 521; 3 fig.

Gas Detector for Miners’ Safety Lamps. T. J. Thomas.
“ Colliery Guard.,” Jan. 28,‘ p. 172; 3 fig.

XVIII.—Mine Fires.

Spontaneous, Combustion in Mines, with Special Refer-
ence to the Bundamba District. W. E. Lawrie.
“ Queensland Gov. Alin. Journ.,” Sept. 15, p. 451.
(Paper read before the Ispwich and District Min.
Inst.)

XIX.	—Rescue and Ambulance.

Mine Rescue and First-Aid Training in British
Columbia. “ Canad. Min. Journ.,” Jan. 15, p. 47.

XX.	—Drainage, Pumping, etc.

The Specific Running Speed of Centrifugal Pumps (Die
spezifische Drehzahl bei Schleuder Pumpen). —.
Gamer er. ” Z. Turb. Wes.,” Dec.. 20, p. 409; illus.

XXI.	—Preparation.

Tests on Various . Electric - Motor-Driven Equipment
Used in the Preparation of Anthracite Coal. H. M.
Warren, A. S. Bresecker and E. J. Powell. “ Trans.
Amer. Inst. Min. Engin.,” Feb., p. 181; 8 fig.

XXII.	—Briquettes.

The Surplus Air in Drying Brown Coal in Steam Tube
Driers for Briquetting (Die Luftuberschuss bei der
Verdunstung im Dampfrohrentrockner der Press-
braunkohlenwerke). A. Achilles. “ Gliickauf,”
Feb. 12, p. 126.	;

XXIII.—Coke Ovens.

Tar Dehydration. R. Wardle. “Gas Engin. Mag.,”
Jan., p. 71; 4 fig. Paper read before the Southern
District Assocn. of Gas Engineers and Managers.)

Method of Distilling Coal. “ Pract. Engin.,” Jan. 27,
p. 56; 2 fig.

Methods of Sulphate of Ammonia Manufacture at By-
Product Ovens : Their Advantages and Disadvantages.
T. H. Riley. “Iron and Coal Tr. Rev.,” Feb. 11,
p. 153. (Paper read before Coke'Oven Man. Assocn.)

Benzol Recovery from Coal Gas (La Ricuperazione del
Benzolo del Gas Illuminante). A. Pacchione.
“ Riv. Scientif. Tecnic. Commerc.,” Jan. 25, p. 21;
2 fig.; Feb. 10, p. 37, 6 fig.