52 [April, 



Abbild. unci Bescreib. neuer oder wenig gekannter Conchylien. Von Dr. R. A. 

 Philippi. Vol. 3. No. 6. 



Palaeontographica. Beitriige zur Naturgeschichte ver Vorwelt. Von Dr. W. 

 Dunker und H. ron Meyer. Vol. 1. Part 5. 



Annals and Mag. of Nat. Hist. New series. Nos. 22, 25, 26, 27. 



The Genera of Birds. By George R. Gray. Part 50. 



Thesaurus Conchyliorum. By G. B. Sowerby, Jr. Part 10. 



The Mammals of Australia. By John Gould. Part 2. 



The Birds of Asia. By John Gould. No. 1. 



Transactions of the Royal Society of London. Part 2. 1849. 



Annales des Sciences Naturelles. August and September, 1849. 



First and Second Report on the Coals suited to the Steam Navy. By Sir H. 

 de la Beche and Dr. L. Playfair. Folio. 



The Natural History of Ireland. By Wm. Thompson. Vol. 2. 8vo. 



Memorie sulla storia et notomia degli animali senza vertebre del regno di 

 Napoli ; di Stefano delle Chiaje. 4 vols. 4to, and atlas folio. 



History of British fossil Reptilia. By Richard Owen. Parts 1 and 2. 4to. 



Lectures on the comparative Anatomy and Physiology of the vertebrate Ani- 

 mals. By Richard Owen. Vol. 2. 8vo. 



Transactions of the Tyneside Naturalists' Field Club. Vol. 1. Parts 1 and 2. 



Journal of the Royal Agricultural Society of England. Vol. 10. Part 2. 



Annales de la Societe Entomologique de France. Ime. serie, tomes 8 11. 

 2e. ser., tomes 1 6. 8vo. 



Histoire naturelle des Lepidopteres ou Papillons de France: par MM. Godart 

 et Duponchel. 16 vols, and Supplement. 8vo. 



Iconographie et histoire naturelle des Chenilles, pour servir de complement a 

 I'hist. nat. des Lepidop. de France par MM. Godart et Duponchel. 2 vols. 8vo. 



Catalogue Methodique des Lepidopteres d'Europe. Par M. Duponchel. 8vo. 



Iconographie et. hist. nat. des Coleopteres d'Europe. Par M. Le Compte 

 Dejean et M. le Dr. Boisduval. 5 vols. 8vo. 



Memoires de la Soc. Linneenne de Paris. 6 vols. 8vo. and atlas 4to. 



A Voyage towards the South Pole in 1822, '24. By James Weddell, Esq. 2d 

 edition. 



A journey to Paris in 1698. By Dr. Martin Lister. 2d edition. 8vo. 



Die Konigl. Schwedischen Akad. der Wissenschaften neue Abhandlungen. 12 

 vols. Svo. 



Commentarii de rebus in scientia naturali et medicina gestis. 44 vols. Svo. 



Dictionnaire des Sciences naturelles ; et planches. 75 vols. 8vo. 



Catalogue of the Mollusca of Northumberland and Durham. By Joshua Alder. 

 Svo. From the Author. 



Catalogue of the Insects of Northumberland and Durham. Coleoptera. Part 1. 

 Svo. By Jas. Hardy and Thos. J. Bald. From Mr. Alder. 



Catalogue of the Fossils of the Permian System of the counties of Northumber- 

 land and Durham. By Richard Howel. 8vo. From the same. 



