One of my copies of Pride and Prejudice has Elizabeth arriving at Hunsford to visit Charlotte in Chapter V of Volume II, and staying until Chapter XV of the same volume.
The other copy does not go by volumes, and has the visit starting in Chapter 28 and ending in Chapter 38.
Mr. Collins proposed to Elizabeth Bennet in Chapter 19 of Jane Austen's "Pride and Prejudice."
Mr. Collins arrives at Longbourn in Chapter 13 of Pride and Prejudice.
Darcy's letter to Elizabeth in Pride and Prejudice is written in Chapter 35.
In Chapter 6, three new characters are introduced: Charlotte Lucas, Mr. Collins, and Sir William Lucas. Charlotte Lucas is Elizabeth Bennet's close friend, Mr. Collins is a clergyman and cousin to Mr. Bennet, and Sir William Lucas is Charlotte's father. Each of these characters plays a significant role in the development of the story.
Mr. Darcy and Elizabeth get engaged in Chapter 59 of Jane Austen's Pride and Prejudice.
Chapter 19 of Volume I is entirely devoted to Mr. Collins proposing marriage to Lizzy and her turning him down. The dialog alone makes it clear that he is a very stupid man, and she is wise not to accept him.
In chapter 6, Charlotte says Jane should be more obvious in her affections for Mr. Bingley. Later in the novel, Mr. Darcy is able to convince Mr. Bingley that Jane does not love him. Because Jane is not blatantly affectionate, Mr. Bingley believes that Jane is only being kind to a new friend. The earlier conversation between Elizabeth and Charlotte forshadows this.
Mr Darcy proposes to Elizabeth for the first time in Chapter 34, however, he does this with all of his pride. The condescension he poses upon Elizabeth through his proposal angers her and so she refuses, giving him a long list of why. However, Mr Darcy then writes a letter explaining his reasons for all of the things he did that caused Elizabeth to refuse his hand in marriage. Eventually, Elizabeth starts to feel something for Darcy and, after he proves how much Elizabeth means to him, when he proposes for the second time, I believe, in chapter 44, Elizabeth gratefully accepts.
in chapter 14 Mr. Collins reads Fordyce's Sermons aloud to the Bennet daughters after tea. It is ironic that he would choose this book, because he is a clergyman himself.
Mr. Darcy was not introduced in the first chapter of Pride and Prejudice because the novel follows the perspective of Elizabeth Bennet, and Darcy's character is gradually revealed to add intrigue and mystery to the story. His absence initially allows for the exploration of other characters and establishes the initial conflict between him and Elizabeth.
Chapter IV
Charlotte Lucas is almost to the age where she would be considered an old maid. She has not received any proposals until Mr. Collins comes along. Women in this era depended on their father when they were young, on their brother(s) if their father died, and on their husbands once married. Charlotte is the oldest and does not like relying on her parents and feeling like a burden to them. She sees Mr. Collins as a smart choice for her because he would be able to provide a comfortable life for her. He has a respectable occupation and a relatively high standing in society as the patron of Lady Catherine de Bourgh. Charlotte is not looking for love, especially since she feels that most people are extremely lucky if they find love in their marriage. She sees marriage as the way to become more respected in society. Once married, she is content with her lot since she loves to run her own household. All she ever desired was a life partner, not a soul-mate.