Original sentence: " These materials allowed him to complete projects he had begun in Utah, which were published in book form as The Humboldt: Highroad of the West in 1943, and The Great Salt Lake’ in 1947., including initiating the compilation of massive bibliographies, lists of primary sources, and transcriptions of newspaper articles, which he called his "tool books.A 1954 appointment as a senior historian at the University of California's Bancroft Library, ended Morgan’s precarious but productive years as an independent historian
Edited sentence: " These materials allowed him to complete several projects he had begun in Utah, which were published in book form as The Humboldt: Highroad of the West in 1943, and The Great Salt Lake’ in 1947., initiating the compilation of massive bibliographies, lists of primary sources, and transcriptions of newspaper articles, which he called his "tool books.A 1954 appointment as a senior historian at the University of California's Bancroft Library, ended Morgan’s precarious but productive years as an independent