Excerpt from Mining and Mine Ventilation: A Practical Handbook on the Physics

In adding to the number of text-books on Mine Ventilation the author aims to provide new material and to dwell more fully on the fundamental theories and laws of ventilation, and to furnish, if possible, to the student a more suggestive method of study in a more graphic form.

While ventilation experts practically agree upon the essential theorems in ventilation, it is believed, however, that the subject may yet hold a new attractiveness and be more readily mastered if a few important principles, which are now generally misunderstood by the student, are magnified.

The method of determining the size of fan, etc., to ventilate a mine under given conditions, together with certain facts pertaining to the water gauge, and the chapter on Mine Fires are entirely new features.

The author wishes to express his gratitude to the Robinson Ventilating Co. of Pittsburgh, Pa.; The American Blower Company, and their manager, Thomas W. Fitch, Jr., Detroit, Mich.; The Jeffrey Manufacturing Co., Columbus, Ohio; The Colliery Engineer, Scranton, Pa.; M. B. King, Expert Assistant in Industrial Education, Harrisburg, Pa.; and The Taylor Instrument Co., Rochester, N. Y., for many illustrations, tables and other information used in this book.

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