ORZA (P. de L'). Les Lepidopteres Japonais a la grande 

 Exposition Internationale de 1867. 8°. Pen-is, 1869. 



OSCULATI (G.). Note d' un Viaggio nella Persia e nelle 

 Indie Orientali, 1841-42. S\ Monza, 1844, 



OSTEN-SACKEN (C. R.). Catalogue of the described 

 Z>ip^gm of North America. 8°. WasJiington, 1858. 



OSTEN-SACKEN (C. E.). Monographs of the Dipera of 

 North America. 



Parts I. & II. 8«. Washington, 1862-64. 

 See Smithsonian Miscellaneous Collections. 



OSTEN-SACKEN (C. H.). Report upon the Collection of 

 Diptera. 4''. Washington, 1873, 



OSTEN-SACKEN (C. R.)- Western Diptera. 



8°. Washington, 1877. 



OSTEN-SACKEN (C. R.). See Surveys & Explorations : 

 U.S., Washington. 



OTTO(A.G.). Animalium Maritimorum nondum editorum 

 Genera Duo. I. Sternaspis thalassemoides. 11. SipJio- 

 stoma diplochaitus. 4^. Bonnm, 1821. 



OTTO (A. G.). De rarioribus quibusdam sceleti humani 

 cum animalium sceleto Analogiis. 4°. Vratislavia^, 1839. 



OTTO (B. C). Conspectus Animalium quorundam mariti- 

 morum. 4°. VratisJavice, 1821. 



OUSTALET (E.). Monographic des Oiseaux de la Famille 

 des Megapodiides. 8''. Paris, 1881. 



OWEN (C). An Essay towards a Natural History of 

 Serpents. 4"*. London, 1742. 



OWEN (R.). Memoir on the Pearly Nautilus. 



4^. London, 1832. 



OWEN (R.). Odontography. 



2 vols. 8°. London, 1840-45. 



261 



