_La Paz, New Mexico_, near the Colorado River, about lat. 33° 30’. A mass of meteoric iron, weighing 10 pounds, was brought from that locality, in 1862, by Mr. H. Ehrenberg. A number of other localities of meteoric iron might be added from more southern and central portions of Mexico; but as that is a region to which the attention of Californian explorers and capitalists has not yet been much directed, it will not be necessary to cite them here. It is hoped that the circulation of the above list may be the means of procuring further information in regard to the masses of iron noticed; and that, possibly, more of them may be brought to San Francisco. [2] The mass was shipped on the Panama steamer, which sailed from San Francisco on the 3d of August. [3] See page 34, of this volume. REGULAR MEETING, AUGUST 3D, 1863. President in the Chair. Present, eleven members. F. M. Spence, of Victoria, V. I., was elected a Corresponding Member. Donations to the Cabinet: Two species of grasses collected in Mariposa County, by Mr. Rowlandson. Donations to the Library: The following foreign journals and scientific works were received through the Smithsonian Institution: Proceedings of the Royal Horticultural Society, Vol. i, Nos. 6 and 7 (1859), 8-19 (1860), 20-31 (1861), Vol. ii, Nos. 1-12 (1862); List of the Fellows for 1861 and 1862; Der Zoologische Garten, Nos. 1-12, 1862; Bulletins de l’Académie Royale de Belgique, Tomes ix-xii, 1860, 1861; Mémoires de l’Académie de Dijon (2) ix, x, 1861; Annuaire de l’Académie Royale de Belgique, Anneés 27 et 28; Mémoires de la Société Impériale de Sciences Naturelles de Cherbourg, Tome viii, 1861; Sitzungsberichte der k. bayr. Akademie der Wissenschaften zu München, 1861, ii, Heft 1-3, 1862, i, Heft 1-4 1862, ii, 1; Abhandlungen der Math. Physik. Classe der k. bayr. Akademie der Wissenschaften, Band ix, Abtheilung 2, München, 1862; Annalen der Königl. Sternwarte bei München, Band xi, 1862; Nachträge zu Maly’s Enumeratio plantarum phanerogamicarum imperii Austriaci universi, von Aug. Neilreich, Wien 1861; Verhandlungen der k. k. zool.-bot. Gesellschaft in Wien, 1861, Bd xi; Jahrbuch der k. k. geolog. Reichsanstalt 1861 and 1862, Band xii; Untersuchungen über die Dichten und Brechungs-exponente, von Dr. Ad. Weiss und Ed. Weiss; Geognostische Beschreibung der preuss. Oberlausitz, von E. F. Glocker, Görlitz, 1857; Abhandlungen der Naturforschenden Gesellschaft zu Görlitz, Band ii, 1860; Mémoires de l’Académie Impériale de St. Petersburg, Tome iii, No. 12, iv, Nos. 1-9; Schriften der k. phys.-ökon. Gesellschaft zu Königsberg, Jahrgang 1, Heft 2 (1861), ii, 2, 1862; Die Culturpflanzen Norwegens, von Dr. P. C. Schübler, Christiana, 1862; Meteorologische Beobachtungen des Observatoriums zu Christiana i and ii, 1862; Beskrivelse