And therein lies the rub... Reading older books or text and assuming that the language used at the time should fall in line with modern rules or accepted practices will drive one crazy. At the time when this book was written there was this idea among the educated that you should follow grammar principles and rules to the letter and an implied verb would make than a conjunction. These days we don't often think of than as a conjunction, and you'll never hear people in the United States speak this way. Typically when people use double subject or double object pronouns in a sentence they are making an attempt at sounding intelligent and they just come off sounding pretentious (even if they use them correctly).

A great example would be to read a book like The Great Gatsby by F. Scott Fitzgerald.

And if you are planning on doing some writing yourself just remember that it is best to keep the messages in the narration clear and add things like this to the pretentious characters to really bother readers.