what were the contents of the letterwritten by the Squire to Dr. Livsey?

This is actually in Ch. 7. A letter comes from Trelawney, indicating that the ship, the Hispaniola, is ready to sail. Jim is troubled by the fact that Trelawney has let everyone in Bristol find out about their treasure hunt. Trelwaney writes that he has purchased a ship. As a ship's cook, the squire has engaged a one-legged old sailor named Long John Silver, who, in turn, found a crew of very tough sailors. Trelawney instructs Jim to go visit his mother before coming to Bristol.