2. How long did London remain the manufacturing center of England?
(a) Until 1855.
(b) Until 1845.
(c) Until 1850.
(d) Until 1835.

3. In 1850, how many gallons of water a day were used by the average London household?
(a) 90.
(b) 150.
(c) 160.
(d) 75.

4. When did Thomas and Sarah Lewis's infant daughter become sick?
(a) August 28, 1854.
(b) August 30, 1854.
(c) August 5, 1854.
(d) August 1, 1854.

5. In 1854, what was the population of London?
(a) 1 million.
(b) 3 million.
(c) 1 1/2 million.
(d) 2 1/2 million.

6. On September 4, in the three days since the outbreak, how many residents of well-to-do houses had died?
(a) Quarter.
(b) Half.
(c) Eighth.
(d) Third.

7. When did Snow propose a theory that an agent that victims ingested was the cause of cholera?
(a) 1848.
(b) 1850.
(c) 1851.
(d) 1849.

8. At the beginning of The Night-Soil Men, what river would the toshers wade through the muck of low tide?
(a) Darent.
(b) Lea.
(c) Thames.
(d) Cray.

9. When did Snow earn his bachelor of medicine degree from the University of London?
(a) 1844.
(b) 1845.
(c) 1843.
(d) 1842.

10. In That Is to Say, Jo Has Not Yet Died, who went up in a hot-air balloon to examine the entire city of London?
(a) Richard Andrews.
(b) Henry Mayhew.
(c) David Watson.
(d) Robert Phillips.

11. In The Night-Soil Men, what did the pure-finders collect?
(a) Horse feces.
(b) Rat feces.
(c) Dog feces.
(d) Human feces.

12. When did doctors begin recommending chloroform for the discomfort of childbirth?
(a) 1840s.
(b) 1860s.
(c) 1870s.
(d) 1850s.

13. Who designed Regent Street to connect Marylebone Park wit the Prince Regent's new home at Carlton House?
(a) John Nash.
(b) Andrew Smythe.
(c) David Withers.
(d) William Marlboro.

14. During the cholera outbreak of 1831, what group of individuals did Snow treat?
(a) Sailors.
(b) Children.
(c) Miners.
(d) Elderly.

15. Which of Charles Dickens' novels had scene a where a team of toshers took coins from a corpse?
(a) Little Dorrit.
(b) Bleak House.
(c) Out Mutual Friend.
(d) Hard Times.