Excerpt from Original Papers on Dynamo Machinery and Allied Subjects

The following short collection of papers includes all that I have written of an original character on electrotechnical subjects. Here and there errors have been corrected; otherwise the papers are republished exactly as they first appeared. The chronological order is not strictly adhered to. The papers are arranged rather according to subject. Thus, five papers relating wholly or in part to the continuous current dynamo come first; then follow four on converters; lastly, there are a note on the theory of alternate current machines and a paper on the applications of electricity to lighthouses.

The motive of this publication has been that I have understood that one or two of these papers are out of print and are not so accessible to American readers as an author who very greatly values the good opinion of American electrical engineers would desire.

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