5. Improvement of marine engines. [Thurston, chap. 5: Maginnis, chap. 11 (technical, good plates and pictures); Chadwick in Ocean steamships, pp. 1-56.]
6. The building of an ocean steamer. [Rideing, in Ocean steamships, pp. 91-111.]
7. Freight traffic by ocean steamers. [Gould, Scribner’s Magazine, Nov., 1891, or in Ocean steamships, p. 217 ff.]
8. Passenger travel. [Same, Magazine, April, 1891, Steamships, p. 112 ff.]
9. Steamship lines of the world. [Hunt, Scribner’s Magazine, Sept., 1891, Ocean steamships, p. 253 ff.; Encyc. Brit.]
10. Write the history of one of the great steamship companies: Cunard, Inman, White Star, North German Lloyd, Hamburg American, etc. [Fry, Maginnis.]
11. Engineering achievements in modern ports. [Vernon-Harcourt, chaps. 9, 10.]
12. The Manchester ship canal. [Vernon-Harcourt, chap. 13; Porritt in Yale Review, vol. 3, 295-310.]
13. The Corinth Canal. [Vernon-Harcourt, chap. 14; U. S. Monthly Summary, Dec., 1901.]
14. Construction of the Suez Canal. [Vernon-Harcourt, chap. 14; Encyc.]