He coined the term “dark continent” in the book, a reference to the portions of the African jungle that were so dense that almost no sunlight made it to the ground. A pocket on the inside back cover of each volume contains a large fold-out map of the regions Stanley explored. Each volume of Through the Dark Continent features half-leather binding, with marbled covers, endsheets, and edges. The Glessner library contains three volumes written by Stanley: the two volume Through the Dark Continent published in 1878, and The Autobiography of Henry M. Stanley was a disappointment,” she found his wife, the English artist Dorothy Tennant Stanley, “pleasant and bright.” Lake Shore Drive, given in honor of the famous explorer, Henry M. On January 1, 1891, Frances Glessner recorded in her journal that she and her husband attended a reception at the home of Franklin and Emily MacVeagh, 1400 N.