4. Smiles's "Self-Help." (m. R. D.)
5. Wood's books on Natural History; especially his anecdotes of animals, and evidences of mind, etc., in animals (e. R. D.). Proctor's books on Astronomy, "Other Worlds than Ours," etc. (e. R. G.). Lubbock's "Primitive Condition of Man" (m. R.). Dawson's "Chain of Life" (m. R.). In some good brief way, as by using the "Encyclopædia Britannica," read about Copernicus, Galileo, Kepler, Newton, Darwin, Herschel, Lyell, Harvey, and Torricelli.
6. Spencer's "First Principles." (d. R. D. G.)
7. Green's "Short History of the English People" (m. R. D. G.). Bancroft's "History of the United States" (m. R. D. G). Guizot's "History of Civilization" (m. R. D. G.).
8. Max Müller's philological works, or some of them (m. R.). Taylor's "Words and Places" (m. R.).
9. In some public library, if the books are not accessible elsewhere, get into your hands the books named in Columns 12 and 13 of [Table I]., and not already spoken of in this table, and glance through each, reading a little here and there to make a rapid survey of the ground, acquire some idea of it, and note the places where it may seem to you worth while to dig for gold.