Includes a digitized image of issues of The Chicago Tribune from 1849-1990: news stories, editorials, photos, graphics, and advertisements. Searchers can use basic keyword, advanced, guided, and relevancy search techniques to locate information. Or, they can browse through issues page by page, as one would browse a printed edition. Search results lists provide bibliographic information, including date, issue, article headline, page number, and byline (where given). Users may choose to display the full page image of any page in any issue.