describe brief role of montmorency and the three friends?[three man in a boat]

'Three Men in a Boat' is about an interesting journey of three men by boat. It is kind of a travelogue of the Thames of that time when it was written. The narrator describes landmarks and villages such as Hampton Court Palace, Hampton Church, Monkey Island, Magna Carta Island and Marlow. He mentions their historical importance. The author also narrates some funny incidents that occur during the journey.
 

George brings humour to the story by walking over the butter while packing and packing the pies at the bottom. He buys a banjo, though he doesn't know how to play it. He troubles others by playing it. His towing experiences are also funny.

Harris comes around as a boastful person who liked to make huge fuss about his work. His misadventures make the novel more interesting. This is clear from the egg episode. He is more assertive and not much concerned about the likes and dislikes of others. He was a terrible singer but nothing could stop him singing if he was in the mood. Unlike Jerome, he had a strange fascination for cemetries and tombs and wanted to visit the graveyard.

Montmorency adds humour to the novel by almost behaving like a human being. He has a belief to poke his nose in almost everything. He believes in committing errors after errors so that people will curse him and he enjoys that. During packing, he treats lemons as rats and bounces upon them. Harris blames J. for spoiling him, but he says that it is natural. Montmorency feels he is a warrior when he meets Tom, the cat and goes near him. But, when he sees Tom sit like a lord in the middle of the road, he withdraws and pulls up his tail. This behavior is so unlike a dog, which generally charges a cat, when it sees one. Montmorency adds humor and fun to the story like George, Harris and J. His treating the kettle as an enemy and his dancing at sniffing it is really a great fun and laughter.