Mayer, G. Tableau Synchronistique des Terrains Tertiaires Inferieurs. 4e edition. Zurich, 1869.
Mojsisovics, E. v. Beitrage zur Kenntniss der Cephalopoden-fauna des alpinen Muschelkalkes. 8vo. Wien, 1870.
Montagna, G. Nouvelle Theorie du Metamorphisme des Roches, fondee sur les Phenomenes de Fossilisation des Animaux et des Plantes de tous les ages geologiques. 8vo. Naples, 1869.
Moore, C. Report on Mineral Veins in Carboniferous Limestone and their Organic contents. 8vo. 1869.
— The Mammalia and other Remains from Drift Deposits in the Bath Basin. 8vo. Bath, 1870.
Monchez, E. Les Cotes du Bresil, descriptions et instructions nautiques. 8vo. Paris, 1869. Presented by the Depot de la Marine.
Murchison, R. I. Address at the Anniversary Meeting of the Royal Geographical Society, May 23rd, 1870.
Murray, A. Report upon the Geological Survey of Newfoundland - for the year 1869. 8vo. St. John's, Newfoundland, 1870. Presented by Earl Granville.
Newberry, J. S. The Geological Survey of Ohio, its Progress in 1869. Report of an Address delivered to the Legislature of Ohio. 8vo. 1870.
Noyers, S. des. Pilote de la Manche. 8vo. Paris, 1869. Presented by the Depot de la Marine.
Ordnance Survey Maps of the United Kingdom, 1-inch scale. England: Sheets 101 N.E., 108 N.E. and S.E. Scotland : Sheet 31. Ireland : Sheets 33, 73, 83, 98, and 130.
—, 6-inch scale. Aberdeen : 43, 44, 46-48, 51-57, 59-63, 66, 68-71, 75, 80-82, 86, 92, 94, 101. Argyll : 174, 213, 242; 246: Pembroke 33, 34, 38-40, 42, 43. From the Secretary of State for War.
Planche, H. de la. Pilote de la Mer Noire. Paris, 1869. Presented by the Depot de la Marine.
Quetelet, A. Notice sur le Congres Statistique de Florence en 1867.
— Observations des Phenomenes Periodiques pendant les Annees 1867 et 1868. 4to. 1869.
Richard, F. I. The Mineral and other Resources of the Argentine Republic (La Plata) in 1869. 8vo. 1870.
Roujoux, H. de. Essai sur l'Atterrage et l'Entre'e de la Rade de Brest par temps brumeux, avec un batiment a vapeur. 8vo, Paris, 1868. Presented by the Depot de la Marine.