Produced by Juliet Sutherland, Henry Gardiner and the Online Distributed Proofreading Team at https://www.pgdp.net * * * * * Transcriber’s Note: The original publication has been replicated faithfully except as shown in the TRANSCRIBER’S AMENDMENTS at the end of the text. This etext presumes a mono-spaced font on the user’s device, such as Courier New. Words in italics are indicated like _this_. Text emphasized with bold characters or other treatment is shown like =this=. Superscripts are indicated like this: S^{ta} Maria. Subscripts are indicated like this: H_{2}O. Footnotes are located near the end of the work. * * * * * [Illustration] [Illustration] THE THOUGHT IS IN THE QUESTION THE INFORMATION IS IN THE ANSWER HAWKINS ELECTRICAL GUIDE NUMBER ONE QUESTIONS ANSWERS & ILLUSTRATIONS A PROGRESSIVE COURSE OF STUDY FOR ENGINEERS, ELECTRICIANS, STUDENTS AND THOSE DESIRING TO ACQUIRE A WORKING KNOWLEDGE OF ELECTRICITY AND ITS APPLICATIONS A PRACTICAL TREATISE by HAWKINS AND STAFF THEO. AUDEL & CO. 72 FIFTH AVE. NEW YORK. COPYRIGHTED, 1914, BY THEO. AUDEL & CO., NEW YORK. Printed in the United States. PREFACE _The word “guide” is defined as:_ =_One who leads another in any path or direction; a person who shows or points out the way, especially by accompanying or going before; more particularly, 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 the way= to the acquirement of a theoretical and practical knowledge of Electricity._ _There are several guides, each covering in detail a certain phase of the broad subject of Electricity and leading the reader progressively, and in such 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 simple language=._ _The Guides are written partly in the question and answer form, as this style of presentation has met with hearty approval, not only from those of limited education, but also from the better informed._