;> 1 8 ( iitabgue of the Library of the Linnean Society. 



2i',l J. Perktold (A.) Erlauterung und Beschreibung der Umbilikarien von Tirol. Inns- 

 bruck, 1842, 8vo. 

 3618. Pency m oad ( ) Plantes Phanerogames qui croissent aux environs de Frejus. Paris, 



;.}, 8vo. 

 8619. I'latu -lum (J. E.) Memoire sur le developpement et les caracteres des vrais et faux 

 Arilles ; suivi de Considerations sur les Ovules de quelques Veroniques et de l'Avi- 

 cennia. Montpellier, 1844, 4to. 



, # Histoire d'une Larve aquatique du genre Simulium. Montpellier, 



1844, 4to. 

 ! . Poinsett (J. R.) Discourse on the Objects and Importance of the National Institu- 

 tion. Washington, 1841, 8vo. 

 J. Prichard (S. F.) and Bowie (J.) Alphabetical List of the Indigenous and Exotic 



Plants growing on the Island of St. Helena. Cape Town, 1836, 8vo. 

 .. Pritchard (A.) List of 200 Microscopic objects. London, 1842, 12mo. 



2624. Quetelet (A.) Resume des Observations sur la Me'teorologie, sur le Magnetisme, sur 



les Temperatures de la Terre, la Floraison des Plantes, &c. Bruxelles, 1841, 

 4 to. 



2625. Reboul (E. de) Nonnullarum specierum Tuliparum in Agro Florentino sponte nas- 



centium propriae notae. Florentia, 1823, 8vo. 



2626. Reeve (L.) Systematic Catalogue of the Lepades and Conchiferous Mollusca. Lon- 



don, 8vo. 

 2627. Conchologia Systematica, parts 1—8, & 10—12. London, 1841—3, 8vo. 



2628. Reeve (L.) and Sowerby (G. B.jun.) Conchologia Iconica: Monographs of the genera 



Area, Cardium, Conus, Corbula, Crassatella, Cypricardia, Delphinula, Glauco- 

 nome, Harpa, Mitra, Myodora, Pectunculus, Pollicipes, and Triton. London, 

 1843—4, 4to. 



2629. Richard (A.) Monographic des Orchidees recueillies dans la chaine des Nil-Gherries 



par M. Perrottet. {Extr. des Ann. des Sc. Nat.) Paris, 1841, 4to. 



2630. Richard (A.) et Galeotti (H.) Monographic des Orchidees Mexicaines, pre'eedee de 



Considerations generales sur la Vegetation de la Mexique. {Extr. des Comptes 

 Rendu* de I' Acad, des Sc, tome 18.) 4to. 

 T;\l' ^ ar f MJ.)IconesPiscium; or Plates of Rare Fishes, part 1. London, 1843, 4to. 



2632. Richardson (J.) and Brown (R.) Notices of the Fishes and Plants collected during 



the first Arctic Expedition under Sir John Franklin. 4to 



2633. Richardson (J.) and Gray (J. E.) The Zoology of the Voyage' of H. M.S. Erebus and 



1 error, parts 1 & 2. London, 1844, 4to. 



2634. Robinson (FO Refutation of Lieut. Wellsted's Attack upon Lord Valeria's Work 



upon the Red Sea. London, 1842, 4to. 



2635. Rosenblad (M.) Tal. Stockholm, 1840, 8vo 



1845. Roxburgh (W.) Flora Indica, vol. 4, containing the Cryptogamous Plants ; edited by 

 William Griffith, Esq., F.L.S. 



