Which two excerpts appear toward the end of the plot structure of Jack London's "Up the Slide"?

Answer:
Halting his dogs beneath, on the river ice, he looked up, and after some searching, rediscovered it. Being dead, its weatherbeaten gray so blended with the gray wall of rock that a thousand men could pass by and never notice it. Taking root in a cranny, it had grown up, exhausted its bit of soil, and perished. Beneath it the wall fell sheer for a hundred feet to the river.
But the descent was precipitate and dangerous in the uncertain moonlight, and he elected to go down the mountain by its gentler northern flank. In a couple of hours he reached the Yukon at the Siwash village, and took the river-trail back to where he had left the dogs. There he found Swanson, with a fire going, waiting for him to come down.