Excerpt from Electricity

The well-merited success and popularity of Dr Ferguson's work on Electricity has led the publishers to issue a new edition adapted, by alterations and extensive additions, to the present state of scientific investigation, and current methods of studying the subject. The book aims at giving a popular and accurate account of the chief experimental facts of the science of Electricity and Magnetism, and of the exact laws which have been deduced from them. It is designed to meet the requirements of students at science classes, science colleges, and technical institutes, as well as Teachers and private pupils, and as an introduction to electrical science as a whole, should be valuable to those engaged in telegraphy, telephony, electro-metallurgy, and the other practical applications of Electricity.

The work has been revised and largely re-written for the present edition, and a considerable amount of new matter added. This was rendered necessary, both from the recent increase of our knowledge of the subject, and also from the fact that certain modern ideas and methods of explanation - such as Potential - required to be introduced. In the experimental part of the subject, constant reference has, of course, been made to Faraday's researches, and to such works as those of Wiedemann and Mascart.

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