viii PREFACE TO THE FIRST EDITION
valuable suggestions. Mr. W. F. Brown voluntarily took upon himself the task of readmg through the volume in its entirety, checking all figures, Chemical eq nations etc with the utmost diligence and with great Help to myself. Needless to sav, the’ author is nothmg without his publishers, and it is not possible to speak too gener-ously of the assistance I have received from this direction, or to express my gratitude too tul y for the enterpnsmg manner in which my volume has been put together I am mdebted to the editors of the Gas World, the Journal of Gas Lighting, and other techmcal papers, for permission to make use of the material contained in vanous articles I have written for them.
J h?Ve the 8ratification °f being able to preface my book with a forenote written by Mr. Stanley H. Jones, M.Inst.C.E., chief engincer and general manager to the Commercial Gas Company. In acknowledging this support it may not be out of place to record the faet that the whole of my training in the profession was carried out under lus supemsjon. Consequently, the principles instilied into my mind are arguY Åh°Se the Commeroial Gas Company, principles which, judging from results the world over, are not to be despised.
™ -r A. M.
Wapping Works, London, E.
November, 1916.