11. Why does nearly all the gold produced in California leave the state? What keeps any of it there?

12. The mint price of an ounce of gold, .900 fine, is alike at San Francisco and Philadelphia, $18.604. Why is gold ever shipped from California to New York?

13. Does gold cost the day-laborer as much in California as in New York?

14. Note any habits of friends that result in their carrying more or less money than others of the same income.

15. What determines the amount of money needed by different persons, towns, states, and nations?

16. Give examples of things that increase the demand for money.

17. On an isolated island would it make any difference as to the value of money if there were but one gold-mine or several competing ones, supposing that the output were the same?

18. What per cent. of the total money in the world is the yearly output of gold; of silver; of gold and silver? Stat. Abst.

19. Is the value of gold and silver due to the action of government?