Koenen, A. von. Ueber die Parallelisirung des norddeutschen, englischen und franzosischen Oligocans. 8vo. 1867. Presented by Mrs. W. J. Hamilton.
—. Ueber die Oligocan-Tertiarschichten der Magdeburger Gegend. 8vo. 1863. Presented by Mrs. W. J. Hamilton.
Koninck, L. de. Discours sur les Progres de la Paleontologie en Belgique. Presented by Mrs. W. J. Hamilton.
—. Notice sur la Vie et les Travaux de P. L. C. E. Louyet. 12mo. Bruxelles, 1851. Presented by Mrs. W. J. Hamilton.
—. Notice sur les Fossiles de l'lnde decouverts par Dr. Fleming. 8vo. Liege, 1863. Presented by Mrs. W. J. Hamilton.
Krauss, Dr. Neue Kap'sche Mollusken, als Zusatz zu meiner Schrift " die sudafrikanischen Mollusken." Presented by Mrs. W. J. Hamilton.
Lartet, E., et H. Christy. Cavernes du Perigord : Objets Graves et Sculptes des Temps Pre-Historiques dans l'Europe Occidentale. 8vo. Paris, 1864. Presented by Mrs. W. J. Hamilton.
Lawrence, W. An Introduction to Comparative Anatomy and Physiology, being the two Introductory Lectures delivered at the Royal College of Surgeons, 1816. 8vo. 1823. Presented by Mrs. W. J. Hamilton.
Lea, H. C. Description of some new Fossil Shells from the Tertiary of Petersbourg. 4to. Philadelphia, 1843. Presented by Mrs. W. J. Hamilton.
Leonhard, G. Beitrage zur Geologie der Gegend um Heidelberg. 8vo. Heidelberg, 1844. Presented by Mrs. W. J. Hamilton.
—. Die Quarz-fuhrenden Porphyre. 8vo. Stuttgart, 1851. Presented by Mrs. W. J. Hamilton.
Leonhard, K. C. v. Hutten-Erzeugnisse als Stutzpuncte geologischer Hypothesen. 8vo. Stuttgart, 1852. Presented by Mrs. W. J. Hamilton.
—. Kunstlicher Glimmer. (Ein Bruchstuck aus: Hutten-Erzeugnisse.) Presented by Mrs. W. J. Hamilton.
Linceo, G. P. Catalogo ragionato di una Collezione di Materiali da Construzione. 4to. Roma, 1862. Presented by Mrs. W. J. Hamilton.
Linnarsson, J. G. O. Om Vestergotlands Cambriska och Siluriska Aflagringar. 4to. Stockholm, 1869.
Logan, W. E. Letter addressed to Mr. Joachim Barrande on the Rocks of the Quebec Group at Point Levis. 8vo. Montreal, 1863. Presented by Mrs. W. J. Hamilton.