The author includes three incidences of foreshadowing at the end of this chapter (7) What are they?

He sends postcards to Burres and Westerberg from Alaska. He is about to inter "into the wild" and comments that he might not make it out alive. Chris also leaves Westerberg his journal and photo album for safe keeping. Chris always had his journal with him. Chris also seemed to say goodbye to people as if it was final.