Barnaby Rudge (1841)
Bleak House (1851-53) 
David Copperfield (1849-50) 
Dombey and Son (1846-48) 
Great Expectations (1860-61) 
Hard Times (1854) 
Little Dorrit (1855-57) 
Martin Chuzzlewit (1842-44) 
The Mystery of Edwin Drood (1870) 
Nicholas Nickleby (1838-39) 
The Old Curiosity Shop (1840-41) 
Oliver Twist (1837-39) 
Our Mutual Friend (1864-65)
The Pickwick Papers (1836-37)
A Tale of Two Cities (1859) 

full list of Project Gutenberg etexts by Dickens at http://www.thalasson.com/gtn/gtnletD.htm#dickensc