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PHOSPHOR BRONZE CO.
Phosphor Bronze ("Cog Wheel" & "Vulcan " Brands).
Ingots, Castings, Plates, Strip, Bars, and Wire. “Duro Metal” (Registered) Alloys A and B.
A Bronze for Roll Bearings, Wagon Brasses, &c. Phosphor Tin and Phosphor Copper.
“Cog Wheel” Brand. The best qualities made. Aluminium and Manganese Bronze and
Brass ("Vulcan " Brand).
WHITE ANTIFRICTION ALLOYS.
Plastic Metal ("Cog Wheel" Brand).
The best Filling and Lining Metal in the Market. Babbitt's Metal ("Vulcan " Brand).
Made in Seven Grades, from £45 upwards. " White Ant" Registered) Metal, No. 1.
Cheaper than any Babbitt's, and fully equal to best Magnolia
Metal. "White Ant” Bronze (a White Metal).
Superior to Fenton's Metal for Cast Car Bearings, &c. Kingston Metal of Finest Quality.
Castings in Bronze, Gun Metal, Brass, and Aluminium
to Drawings or Patterns. Machined if desired.
87, SUMNER ST., SOUTHWARK, LONDON, S.E.
And at BIRMINGHAM.
A COMPREHENSIVE TREATISE ON THE LAYING-
OUT AND WORKING OF COLLIERIES
A BOOK OF REFERENCE FOR COLLIERY MANAGERS
FOR THE USE OF COAL-MINING STUDENTS PREPARING
FOR FIRST-CLASS CERTIFICATES
MINING ENGINEER AND SURVEYOR, MEMBER OF THE NORTH OF ENGLAND INSTITUTE
OF MINING AND MECHANICAL ENGINEERS, AND MEMBER OF THE
SOUTH WALES INSTITUTE OF MINING ENGINEERS
FIFTH EDITION, CAREFULLY REVISED AND GREATLY ENLARGED
Containing over 1,000 Diagrams, Plans, and other Ellustrations
PREFACE TO FIRST EDITION.
Even a slight acquaintance with the duties and responsibilities of a Colliery Manager will lead to the conclusion that he had need be almost omniscient within his own province. Besides his responsibility for satisfactory results in the openingout and working of a colliery, under the ever-varying conditions of coal-mining enterprise, there rests upon him a heavy legal as well as moral responsibility which no true man would wish to shirk, and in the discharge of which he has to prepare for that which happens more often, perhaps, in his career than in that of most professional men—viz., the unexpected. It becomes him, therefore, to fit himself beforehand in every possible way for the discharge of his onerous duties. In so doing he will have to acquire the rudiments of Geology, Chemistry, and Electrical Engineering; a good deal more than the rudiments of Mechanical Engineering, Surveying, and Plan-making; and to make himself master of the mysteries comprised in the comprehensive terms Practical Mining and Ventilation. Further, he must be thoroughly versed in the obligations imposed upon him and his subordinates by the Acts of Parliament bearing on the subject