In this excerpt from Part 2, of "To Build a Fire", by Jack London, using the context clues as a guide the meaning of "to appease", is to calm and to soothe. This is the man's first time in North Canada. It is winter and the land is covered by ice and snow. The man understimates the power of nature. The dog is with him. He is first angered by it, but when it flattens down its ears and he calms down.