How is Holmes able to connect the sending of the pearls to the sending of the note

Holmes could connect the receiving of the pearls with the sending of the notes because the pearls that Mary recently received were sent with a note.

Explanation:

This has been taken from the chapter "The sign of the four" which is a suspense and Holmes has been employed there to be an investigator.

Holmes is able to connect the sending of the pearls with the sending of the notes because the pearls that Miss Mary Morstan received recently came with a note. In the note which she got with the pearls it was written to go the Lyceum theater which is located in the end of the western side of London. She was asked to go there because some one was going to come there to meet her.