Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 858
distance. For a long time there has been urgent need fora light portable telephone for this service. Thisneed has recently been met by a forest officer ofMissoula, Montana, who has invented a very in- genious portable telephone, weighing only twoand a half pounds and so practical that it has… … A FOREST R.\NGER USING THE PORTABLE TELEPHONE. and a short piece of heavy wire to make theground connection, can cut in anywhere alongthe more than twenty thousand miles of ForestService telephone-lines and get in touch with theheadquarters of a supervisor or district ranger.To talk, one end of the…
Children's literature
Internet Archive · UNC Libraries · Public Domain Mark 1.0. Free to use for anything.