Correspondenzblatt des Naturforschenden Vereins zu Riga, 13ter Jahrgang; Riga 1863. Verhandlungen der K. K. zoologisch-botanischen Gesellschaft in Wien, Band XII, Heft 1, 2, 3, 4, Wien 1862. Personen-Orts-und Sach-Register der Sitzungsberichte und Abhandlungen der Wiener K. K., Zool. bot. Gesellschaft, Wien 1862. Oversigt over det Kongelige danske Videnskabernes Selskabs Forhandlinger Aaret 1861; 8vo. Kiöbenhavn. Der Zoologische Garten, IV Jahrgang, Nr. 1-6, 1863, 8vo. Frankfurt a M. Proceedings of the Royal Horticultural Society, Vol. III, Nos. 6, 7, June and July, 1863. Schriften der Königlichen physikalish-ökomischen Gesellschaft zu Königsberg, IIIter Jahrgang, Abtheilungen 1, 2, 4to, 1862-3. Abhandlungen der K. K. geologischen Reichsanstalt, Band I-III & IV, 1-2, 3-4, 4to, Wien 1855-6. Jahrbuch der K. K. Reichsanstalt, Band XII 3, 4; XIII, 1, 8vo. Wien 1862-3. General-Register der ersten zehn Bände des Jahrbuchs der K. K. geol. Reichsanstalt, 8vo. Wien 1863. Considerations on the phenomena attending the fall of Meteorites on the earth, by W. Haidinger, (from the Philosophical Magazine for Nov. and Dec., 1861.) Seven papers on natural History, by George V. Frauenfeld, extracted from the Verhandlungen der K. K. Zool. bot. Gesellschaft in Wien. Also three papers by Messrs. Böck, Brunner, V. Wattenwyl, and Doleschall, from the same journal, together with the seven papers mentioned above, presented by G. Ritter V. Frauenfeld. Prof. Whitney remarked that these donations were of great value, especially those relating to the Geological Survey of Austria, obtained through Baron von Richthofen. On motion, the special thanks of the Academy were tendered to him and to the “K. K. Geologischen Reichsanstalt” for the donation. Sheet seven of the Proceedings of this Academy, pps. 97-112, was received from the printer. Committees of Finance and of Publication were then elected. Dr. Cooper, on behalf of Dr. Newcomb, corresponding member, presented the following paper on new Californian Helices, all of which, except the first species, were discovered by Dr. Cooper, while connected with the State Geological Survey. Descriptions of Nine New Species of Helix Inhabiting California. BY W. NEWCOMB, M.D., OF OAKLAND, CAL. HELIX L. _Helix Hillebrandi_ Newc. H. testa supra planulata, luteo-cornea, sub-carinata, fasciis albis bi-cingulata, sub-lente crebre granulata, hirsuta; anfractibus 6 undique minute striatis, striis oblique transversis; anfr. ultimo descendente; umbilico late-aperto; apertura lunari-ovale; peristomate tenuo, albo, reflexo, prope umbilicam expanso. Lat. maj. 0.9, min. 0.8 pol. Alt. 0.35 pol. _Hab._ Tuolumne County, California.