Before you start looking for scholarly sources for your research, consider how you might find those articles and books to which the Elihu Burritt does not have or provide access. Set up an interlibrary loan account, for free, before beginning your research to eliminate the disruption to your thought process.
Found an article that seems promising, but can't access the full text? ILLiad is the library's system for managing interlibrary loan requests. Simply select the type of item you're looking for, provide as much information about it as you can, and you will be notified if/when we are able to provide it.