Excerpt from Industrial Electrical Measuring Instruments
In the interval which has elapsed since the publication of the First Edition, there has been considerable development in nearly all directions. Of epoch-making innovations there has been none, but progress has been continuous. As a result, it has been necessary to rewrite the whole, and the expansion of all sections has been so great that in order to keep within reasonable limits some have had to be abandoned. For this reason, the subject of "Fault Localisation," as distinguished from "Fault Detection," has been omitted, as have also "Relays" and "Over Pressure Devices." "Pyrometers," on the other hand, have again been dealt with at some length.
The success attending the First Edition appeared to warrant a continuance of the same method of treatment, which has accordingly been followed. Thus, it will be found that the mathematics is of the simplest, vector diagrams being used wherever possible, and in this connection the following paragraph may be quoted from the Preface to the First Edition: -
"Mathematicians will doubtless deplore the almost entire absence of mathematics, but, writing as an engineer, for engineers, the author is strongly of opinion that higher mathematics would be quite out of place. He believes that the only way to get a thorough insight into any phenomenon is to obtain a clear 'mental picture' of what is taking place, and that, except to the mind of the trained mathematician, a mathematical solution too often fails to bridge over that wide gulf which separates the abstract from the concrete."
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