2. What is the name of Humboldt's last book geared toward nonscientific readers?
(a) The Galaxy
(b) Star Trek
(c) Cosmos
(d) Galatial Odysseus

3. According to Remington, "Cowboys are ______________."
(a) interesting
(b) dirty
(c) illiterate
(d) cash

4. Humboldt is one of the earliest _________________.
(a) astrologers
(b) mathemeticians
(c) astronomers
(d) ecologists

5. Who is Aime Bonpland?
(a) Humboldt's mentor
(b) Humboldt's father
(c) Humboldt's partner
(d) Humboldt's minister

6. Why does Agassiz first come to the United States?
(a) To find a wife
(b) To meet the president
(c) To go on a Lecture Tour
(d) To teach at Yale

7. Who is Eva Caten?
(a) Remington's wife
(b) Remington's first art teacher
(c) Remington's sister
(d) Remington's favorite portrait subject

8. How many documents does Valentine find?
(a) 6,000
(b) 10,000
(c) 1,000
(d) 5,000

9. Where does Agassiz take a summer expedition in 1848?
(a) Lake Superior
(b) The amazon
(c) Mt. St. Helens
(d) Vesuvius

10. What makes it hard to retain workers for the railroad?
(a) Treacherous terrain
(b) The heat
(c) The Gold Rush
(d) Low pay

11. The first essay is entitled "Journey to the top of the __________."
(a) Heap
(b) Class
(c) World
(d) Mountain

12. Who takes over the work of running the project after her husband is paralyzed?
(a) Emily Roebling
(b) Alice Grant
(c) Emma Roebling
(d) Frannie Remington

13. Where does Valentine find documents related to the bridge?
(a) The New York Public Library
(b) A bank vault
(c) Roebling's home
(d) The carpentry shop

14. How is the answer to #77 paralyzed?
(a) From a train accident
(b) From "the bends"
(c) From a boating accident
(d) From polio

15. The idea for the railroad originates with three men who are _______________________.
(a) not railroad men
(b) railroad executives
(c) army officers
(d) politicians