I. Chile: its geography, climate, earthquakes, government, social condition, mineral and agricultural resources, commerce, &c., &c. [with Appendices A, B, C] by J. M. Gilliss. 1855.
II. Report of journeys across the Andes and pampas of the Argentine provinces, by Archibald MacRae. Appendices: D. Minerals, by L. J. Smith. E. Indian remains, by T Ewbank. F. Zoology: Mammals, by S. F. Baird. Birds, by J. Cassin. Reptiles, fishes, Crustacea, by C. Girard. Shells, by A. A. Gould. G. Botany: Dried plants, by Asa Gray. Living plants and seeds, by W. D. Brackenridge. H. Paleontology: Fossil mammals by J. Wymn. Fossil shells, by T. A. Conrad. 1855.
III. Observations to determine the solar parallax, J. M. Gilliss. 1856.
IV.-V. Not published. See note preceding contents.
VI. Magnetical and meteorological observations, under the direction of J. M. Gilliss. 1856.
