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Across 6. chief justice of the U.S. Supreme Court who helped establish the practice of judicial review. 9. territory in western United States purchased from France in 1803 for $15 million 10. Jefferson's Vice President; killed Alexander Hamilton in a duel

Down 1. Two explorers sent by the president to explore the Louisiana Purchase 2. a law that increased the number of federal judges, allowing President John Adams to fill most of the new posts with Federalists.(people who agreed with him) 3. The 16 judges that were added by the Judiciary Act of 1801 4. This case establishes the Supreme Court's power of Judicial Review 5. Allows the court to determine the constitutionality of laws 7. an area of authority or control; the right to administer justice. 8. Native American woman who served as a guide an interpreter for the Lewis and Clark expedition.