From all these excerpts of "Lifeboat Ethics: The Case Against Helping the Poor", the last sentence is the one that provides an example of logos because it gives clear and compelling information that helps address the topic by employing reason.
It provides hard data through statistics, to argue his case and convince the reader to believe his ideas.
The first novel that was written by James Cooper was "Precaution", however, it did not receive a fine review. Therefore, he wrote his second book entitled "The Spy". It was a story about the true love of America. He was considered as a contributor because of his introduction to several themes.
Comparing and contrasting; you can do that in a Venn diagram(the two overlapping circles)