Browning’s poetic work-time covered a period of about fifty-six years, (1833-1889,) and during this time he published over thirty volumes of verse, containing more than two hundred and thirty poems, the longest, The Ring and the Book, extending to nearly twenty-one thousand lines. It was an immense output, greater I think, in mass, than that of almost any other English poet except Shakespeare. The mere fact of such productiveness is worth noting, because............