Original sentence: Whitney, who had never visited the New Siberian Islands and relied upon anecdotes of traders and travelers and local folklore for their descriptions of them, and other articles were wriitten by explorers and ivory hunters untrained in either geology or other sciences
Edited sentence: Whitney, who had never visited the New Siberian Islands and relied upon anecdotes of traders and travelers and local folklore for their descriptions of them, and other articles were written by explorers and ivory hunters untrained in either geology or other sciences