Excerpt from The Use of the Steam-Engine Indicator: Or Practical Science for Practical Men
In the following pages the author proposes to set forth some things which have been done by the "use of the Steam-engine Indicator," and hopes thereby to make the body of the work conform to the title-page. Most writers upon this subject make use of rules, formulas, and mathematical matter, which, to the professional man may be acceptable enough, but to the busy manufacturer and the practical engineer these formulas are dry reading. Said a large manufacturer to me once in the City of New York, "I care very little for the scientific principles upon which these things are based; results are what I want." And so it is with the busy men of these times: satisfy them of the results, and that is what they will pay liberally for; they are willing to leave the discussion of the scientific part to experts.
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