Volume 6, 1939/40.

5. Crisis in the Pacific. © 22Dec39; MP9913.

6. The Republic of Finland, 1919–1940. © 19Jan40; MP9914.

7. The Vatican of Pius XII. © 16Feb40; MP10058.

8. Canada at War. © 4May40; MP12035.

9. America's Youth - 1940. © 12Apr40; MP10233.

10. The Philippines 1898–1946. © 10May40; MP10223.

11. The U. S. Navy 1940– © 7Jun40; MP10380.

12. Spoils of Conquest. © 2Aug40; MP10459.

13. Gateways to Panama. © 23Aug40; MP10460.