Can someone me summarise every chapter of 'the sign of four' it's due friday the 16th

Chapter 1
We open the novel with Watson recollecting Sherlock giving himself a shot of a 7% cocaine solution.
Between morphine and cocaine, Watson believes that Holmes is beginning to throw his life away.
Holmes explains that even though the physical side effects are taxing, the shot of cocaine allows his mind to remain clear and focused.
Watson and Holmes reminisce about their previous case and how Holmes is "the only unofficial consulting detective" in town.  
Watson tells Holmes of the chroniciling of the events in his memoir "A Study in Scarlet."  
Holmes describes a case in which he assisted another detective, Francois Le Villard, who is currently the top French detective.
Holmes mentions three qualities necessary to be a great detective: deduction, observation, and a desire to seek knowledge. 
Holmes describes to Watson his monagraphs which are like "how to" plans for the common detective.  Currently he has written monagraphs regarding cigar ash and footsteps.
Sherlock takes Watsons older brother's watch, and tells Watson everything he can tell about the owner of the watch, and it's history.
Watson is offended by Sherlock's response.  Holmes tells him of his brother and his drinking problem.  Holmes then informs of how he deduces these facts.
What does Holmes tell Watson when he asks this?
The land-lady comes with a letter from a lady named Mary Morstan.