books.google.com - Includes Part 1, Number 1 & 2: Books and Pamphlets, Including Serials and Contributions to Periodicals (January - December)...http://books.google.com/books/about/Catalog_of_Copyright_Entries_Third_Serie.html?id=3jwhAQAAIAAJ&utm_source=gb-gplus-shareCatalog of Copyright Entries. Third Series