Excerpt from Census of Electrical Industries, 1917: Telephones The distinction between the systems having ex changes and the independent farmer or rural telephone lines, which had been unsatisfactorily maintained in 1902 and partially abandoned in 1907, was definitely discarded in 1912. Detailed statistics were required at the censuses of 1912 and 1917. Only from companies having an annual gross income of or more. Any company, line, or system having an annual income of less than that amount is now required to make only a very brief report. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.