His other writings include: Sonnets and Other Verses (1894); Lucifer, a Theological Tragedy (1899); Three Philosophical Poets (1910); Winds of Doctrine; Studies in Contemporary Opinion (1913); Philosophy (1916) and Character and Opinion in the United States; with Reminiscences of William James and Josiah Royce, and Academic Life in America (1920).
Blanc (2nd ed., 1859); Comtesse de Choiseul-Gouffier, Memoires historiques sur l'empereur Alexandre (1829), and Reminiscences sur l'empereur Alexandre I., &c. (Paris, 1862); Rulemann Friedrich Eylert, Charakterziige and historische Fragmente aus dem Leben Konig Friedrich Wilhelm's III.
His production consists of two elaborate complementary lists: the one describing sign-pictures and giving their meanings, the other cataloguing ideas in order to show how they could be expressed in hieroglyphic. Each seems to us to be made up of curious but perverted reminiscences eked out by invention; but they might someday prove to represent more truly the usages of mystics and magicians in designing amulets, &c., at a time approaching the middle ages.
The occasional references to Roman history in Lucretius are evidently reminiscences of the Annales.
Annexation was the goal which from the beginning he kept steadily before his eyes (Reminiscences, ii.