Complex sentence: The novel was originally published in monthly instalments in the Magazine "Bentley's Miscellany" from February 1837 to April 1839.form part of Dickens's serial, "The Mudfog Papers".
Split into simpler sentences: The novel was originally published in monthly instalments in the Magazine "Bentley's Miscellany" from February 1837 to April 1839. It was originally intended to form part of Dickens's serial, "The Mudfog Papers".