Open Library

Open Library, a book digitization project of the Internet Archive, provides access to millions of books.   Books in the public domain can be downloaded for free by anyone. Books that are still subject to copyright can be borrowed via controlled digital lending.  An account is not needed to search this collection, but you need to create an Open Library account to either read on their Internet Archive book reader or download to epub/pdf. 

John Jay access URL
Freely available to the public