Life among the ants
Evening songs
A los pies de Venus (los Borgia) : novela
The machinery of the mind
The evolution of the oil industry
Blackwood's Edinburgh Magazine, Vol. 74, No. 454, August, 1853
Blackwood's Edinburgh Magazine, Vol. 74, No. 455, September, 1853
Blackwood's Edinburgh Magazine, Vol. 79, No. 485, March, 1856
Blackwood's Edinburgh Magazine, Vol. 70, No. 432, October, 1851
Musta helmi
La Légende des siècles tome IV
The Monist, Vol. 2, 1891-1892 : A quarterly magazine
The Monist, Vol. 3, 1892-1893 : A quarterly magazine
The Little Review, August 1917 (Vol. 4, No. 4)
Oration on Voltaire
Ihmisen osa : Runoja