What do the surnames caldwell and Calloway have in common bud not buddy

How does gatsby smile at nick? why is this important?

Some one drawing water and my theater placed my hand under the spout. as the cool stream gushed over one hand she spelled into the other the word water , first slowly , then rapidly . i stood still ,my whole attention fixed upon the motions of her fingers . suddenly i felt misty consciousness as of soothing forgotten --a thrill of returning thought and somehow the mystery of language was revealed to me this passage from the stoyof my life is an wxample of which element of plotclimax action

Which type of rhetoric is used in this sentence? while i'm certain some will disagree with what i'm about to say, i respectfully ask them to listen to the evidence i will provide to support my claim