]xx. 
Nouvelles observations microscopiques. Par M. Needham. 12mo. | 
Observations microscopiques sur les parties de la veneration des plantes ren- 
fermes dans les fleurs, et sur les insectes qui s’y trouvent. Par. Guil. Fred. 
Baron de Gleichen. ‘Traduit del’?Allemand par J. F.Isenflamm. Folio. 
Die Macht des Kleinen sichtbar in der Bildung der Rinde unseres Erdballs. 
Von P. Harting. 8vo. 
Zeitschrift fir Malakozoologie. Von Menke und Pfeiffer. 1853, No. 4. 
Comptes Rendus. Tome 36, Nos. 17—22. ' 
History of British Mollusca and their Shells. By Prof. Forbes and §. Han- 
ley. Parts 50 and 51. 
The Eggs of British Birds. By J.C. Jennings. 12mo. 
London, Edinburgh and Dublin Philosoph. Magazine. Vol. 5, Nos. 34 and 35. 
Annals and Magazine of Natural History, June, 1853. 
London Atheneum for May, 1853. 
Conchologia iconica. By Lovell Reeve. Parts 117, 118, 119. 
Journal of the Franklin Institute, July, 1853. 
Illustrations of the Birds of California, Texas, &c. By John Cassin. 2d edi- 
tion, No. 1. 8vo. 
July 19th. 
Journal of the Society of Arts, (London,) Nos. 30, 31. From the Society. 
Memorias de la Real Academia di Ciencias de Madrid. Tomo 1, 3a serie. 
Ciencias naturales tomo 1, parte 2. 4to. From the Academy. 
Resumen de las Actas de la Academia Real de Ciencias de Madrid de 1850 a 
1851. From the same. 
Catalogue of the Cabinet of Natural History of the State of New York. 8vo. 
From the Regents of the University of New York. 
The following were presented by Dr. Wilson on the usual condition :— 
London Atheneum for June, 1853. 
Brevi Cenni di alcuni resti delle classi Brachiopodi ece. di G. Michelotti. 
Analyse d’une Idiocrase violette de la Vallée d’Ala par Ange Sismonda. 
Notice sur Jes operations enterprises pour determiner la figure de la Terre. 
Par M. Biot. 
Institut Royal de France. Funerailles de M. Alexandre Brongniart. 
Versuch zu einer grundlichen Vertheidigung der Saamenthierchen. Von 
Martin F. Ledermiillern. 
August 2d. 
Proceedings of the Boston Society of Natural History. Vol. 4, pp, 289-304. 
From the Society. 
Annals of the Lyceum of Nat. History of New York. Vol. 6. No.1. From 
the Lyceum. 
Charleston Medical Journal and Review. July, 1853. From the Editors. 
Biographical Notice of Daniel Drake, M.D., of Cincinnati. By Charles D. 
Meigs, M.D. From the Author. 
Revue et Magasin de Zoologie, 1853. Nos. 1—5. From Dr. Wilson. 
Annales des Sciences Naturelles. Tome 19, 3me serie. Zoologie Nos. 1—2. 
From the same. 
Annales de Chimie et de Physique. 3me serie, tome 37, tome 38, Nos. 1—2. 
From the same. 
Comptes Rendus. Tome 36. Nos. 23, 24,25. From the same. 
August 9th. 
The following were presented by Mr. Edward Wilson on the usual condition 
Trattato di Geologia del Sig. Conte Angelo Dalla Decima. 8vo. 
Geognostisch-geologische Aufsatze als Vorbereitung zu einer innern Natur- 
geschichte der Erde. Von H. Steffens. 8vo. 
Lettres sur la Mineralogie et sur divers autres objets de histoire naturelle de 
V’Italie ecrités par M. Ferber a M. de Born. Ouvrage traduit de |’Allemand 
par M. de Dietrich. Svo. , 
