George B Prescott eBooks
eBooks di George B Prescott
History, Theory, and Practice of the Electric Telegraph. E-book. Formato PDF
George B. Prescott
edizioni Forgotten Books collana , 2017
As there has been much controversy between rival claimants to the discovery of the principles of the elec tric telegraph, we have devoted mudh time to the full consideration of the claims of each, and present the facts so obtained to the impartial judgment of the reader.