Short lectures to electrical artisans. Being a course of experimental lectures delivered to a practical audience

Front matter

LIBRARY

SHORT LECTURES

TO

Preface

THESE short Lectures require a word, by way of preface, to explain that they were not in any way intended as a connected exposition of even elementary principles of electro-technics. Being desirous that practical training should be supplemented by some attention to theory, Mr. It. E. B. Crompton requested me to give during the past winter some Lectures on subjects connected with the principles underlying modern electrical engineering to the pupils and workmen associated with his firm, and the following pages contain the transcript of these Lectures delivered at Chelmsford. Confident that the right direction for technical training is to bring home to the craftsman the scientific principles involved in daily work which passes under his hands, the subjects which most naturally claimed attention were those involved in everyday experience of the audience addressed. It is with the hope that the elementary explanations here given may be useful to other similar practical students, and as introductory to larger treatises, that they are here reprinted.

J. A. F.

September, 1886.

PEEFACE

TO THE SECOND EDITION.

THE call for a second edition has afforded the opportunity to erase several typographical errors, and to remove some other blemishes which had escaped notice and correction in the first edition of this little book, but which courteous critics in the technical journals have pointed out. It has not been deemed desirable to enlarge the scope of these elementary expositions, since to do this effectually would have altered the character of the book. At the same time many paragraphs have been re-worded, in the hope that clearness might thereby be gained.

J. A. F.

UNIVERSITY COLLEGE, LONDON.

January, 1888.