Dickens makes wide use of olfactory imagery in the novel, David Copperfield, to paint a picture of his settings. Examples of imagery include;
"smell of fish"
"strange unwholesome smell"
"bad air"
"mouldy air"
Dickens also uses animal imagery to characterize his characters.
a "deep-mouthed and black-haired" dog (Mr. Murdstone)
"....he ordered me like a dog, and I obeyed like a dog".
"Take care of him. He bites."
David Copperfield