Publisher's Synopsis
Excerpt from A Popular Guide to Commercial Domestic Telephony
In order that this may prove of service to those absolutely ignorant of Electrical Science, we find it necessary to explain some of the very elementary laws of Electricity and Magnetism, without knowledge of which it would not be possible to understand the technical expressions necessarily used. We trust that the effect of our efforts will be to enable those who have hitherto looked upon telephone work as some thing complicated and difficult, to lay themselves out for this class of work with confidence.
For further and more detailed information we would recommend our readers to study the excellent works by Preece Stubbs, Sinclair Raphael, A. R. Bennett, F. C. Allsop, Poole, &c., in which collectively will be found exhaustive information, including descriptions of the most complicated exchange systems.
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