Sentence:  So, what between Mr. Dowler's stories, and Mrs. Dowler's charms, and Mr. Pickwick's good humour, and Mr. Winkle's good listening, the <WSD>insides</WSD> contrived to be very companionable all the way. 
Meaning of the word marked with <WSD> tags:  A passenger within a coach or carriage, as distinguished from one upon the outside.