THE PROPOSED CHANGES IN THE TELEGRAPHIC SYSTEM. BY GARDINER G. HUBBARD. Reprinted from the North American Review, July, 1873. BOSTON: JAMES R. OSGOOD AND COMPANY, Late Ticknor & Fields, and Fields, Osgood, & Co. 18T3. ) University Press: Welch, Bigelow, & Co., Cambridge. r PROPOSED CHANGES t