WorldCat allows you to discover materials at Tulane University AND in libraries worldwide. View local holdings or borrow from U.S. libraries using Interlibrary Loan (ILL). Two different interfaces, the first a more in-depth option via subscription (FirstSearch, via the Tulane University icon link), and the second open-access (WorldCat Local, via the orange OA icon) offer unique user experiences.
Use Google Books to do a full-text search of books in their database. If you find something you want, copy the title into Library Search and see if it's available. If not, order it through Interlibrary Loan (ILLIAD)