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Excerpt from The Steam-Boiler Catechism: A Practical Book for Steam Engineers, and for Firemen, Owners and Makers of Boilers of Any Kind; Covering the Properties of Steam and of Fuels, and the Theory and Practice of Designing, Constructing, Setting, Connecting, Testing, Firing and Repairing
The examination questions of the Cana dian, New York and Philadelphia licensing boards are distributed throughout the work under their proper headings, all except those personal questions which refer to candidate's names, time of service, etc. And a few of the purely arithmetical matters.
I do not claim any originality in this book. A man's knowledge in steam engi neering is not invented; it is like geography, the sum of the personal knowledge of thous ands oi others.
It is not to be supposed or expected that it will answer every question which might be asked, concerning a steam boiler. It does answer all that have occurred to me, or of which I have a record as having been asked me.
As with my other Practical Catechisms, I shall take great pleasure in answering by mail, where possible, and when stamp is enclosed, questions not answered in this book; and shall add such questions and their answers, (omit ting oi course, correspondent's names,) to future volumes or editions should they be called for. The reader is especially requested to consult the index.
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