What is an example of polysyndeton in "fahrenheit 451"?

“And if it was not the three walls soon to be four walls and the dream complete, then it was the open car and Mildred driving a hundred miles an hour across town, he shouting at her and she shouting back and both trying to hear what was said, but hearing only the scream of the car.” (Ray Bradbury's Fahrenheit 451, page 46)

“Laughter blew across the moon-colored lawn from the house of Clarisse and her father and mother and the uncle who smiled so quietly and so earnestly. Above all, their laughter was relaxed and hearty and not forced in any way…” (Ray Bradbury's Fahrenheit 451, page 17)

Hope it helped! :)

And I am not so sure of the pages, just check em out. 

What do you mean determine? answer in comment section.