HAWKINS

ELECTRICAL GUIDE

NUMBER
ONE

PREFACE

The word “guide” is defined as:

One who leads another in any path or direction; a person who shows orpoints out the way, especially by accompanying or going before; moreparticularly, one who shows strangers or tourists about; a conductor;leader, as “let us follow our guide.”

This book, or “Guide,” is so called because it leads or points out theway to the acquirement of a theoretical and practical knowledge ofElectricity.

There are several guides, each covering in detail a certain phase of thebroad subject of Electricity and leading the reader progressively, and insuch a way, that he easily grasps, not only the simple fundamental facts,but the more complex problems, encountered in the study of Electricity.This is accomplished by the aid of a very large number of illustrations,together with specific explanations, worded in concise and simplelanguage.

The Guides are written partly in the question and answer form, as thisstyle of presentation has met with hearty approval, not only from those oflimited education, but also from the better informed.

Where recourse is had to the question and answer form, the special aim ofthe author has been to give short and direct answers, in such plainlanguage as to preclude a misconception of the meaning. With this in view,the answer gives simply the information sought by the question.

The answer is limited to one paragraph so that the reader may concentrateupon the fact or facts demanded by the question.

Any enlargement of the answer or specific explanations of items containedtherein, are presented in separate paragraphs printed, in smaller type.

With this plan of separating the answer, as it were, from items ofsecondary importance, and making it short and simple, its content is moreforcibly impressed upon the mind of the reader.

In a text book, it is necessary to illustrate and explain the variousspecies of commercial apparatus m