ORB— ORT 



381 



Orbigny (Charles d'). Classification et principaiix caracteres mineralo- 

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8vo. Paris, 1848. 



. Description sommaire des divers terrains qui constituent I'ecorce 



terrestre. (Tract.) 8vo. Paris, 1849. 



and Gente (A.). Geologie appliques aux arts et a I'agriculture. 



8vo. Paris, 1851. 



. Description des roches. 8vo. Paris, 1868. 



. See HuoT (J. J. N.). 



Ordinaire (C. N.). A Natural History of Volcanoes. Translated from 

 the original French manuscript, by R. 0. Dallas. 8vo. London, 1801 . 



. Histoire naturelle des volcans. 8vo. Paris, 1802. 



Ordnance Map of Scotland. Remarks on the scale adopted. (Tract.) 



8vo. No date. 



Ordway (Albert). On the supposed identity of the Paradoxides Harlani, 

 Green, with the Paradoxides sjpinosus, Boeck. (Tract.) 



8vo. Boston, 1861. 



O'Riley (Edward). Journal of a Tour to Karen-Nee for the purpose of 

 opening a trading-road to the Shan traders from Mobyay and the 

 adjacent Shan States, through that territory direct to Toungoo. 

 (Tract.) ^ ^ 8vo. 1857. 



. A brief notice of the Tenasserim Provinces in relation to their 



Commercial and Political Importance. (Tract.) 



8vo. Bassein, 1862. 



Orlebar (A. B.). Some observations on the Geology of the Egyptian 

 Desert. (Tract.) 8vo. Btymhay, 1845. 



Ormerod (George Waring). On the Geology of Central Cheshire. (Tract.) 



8vo. London, 1843. 



. On the Salt Eield and New Red Sandstone of Cheshire. (Tract.) 



8a^o. Manchester, 1843. 



. Remarks on a line of Earthworks in the parish of Lidenham, 



Gloucestershire, known as " Offa's Dyke." 4to. London, 1859. 

 . On the traces of Tin-streaming in the vicinity of Chagford. 



(Tract.) 8vo. Plymouth, 1866. 

 . Notes on the Carboniferous beds adjoining the northern edge of 



the Granite of Dartmoor. (Tract.) 8vo. Plymouth, 1867. 

 . Notice of Molars of Hippopotamus major stated to have been 



found in Kent's Cavern, Torquay. (Tract.) 8vo. Plymouth, 1869. 



. Notice of the occurrence of Scapolite at Chagford, Devon. (Tract.) 



8vo. Plymouth, 1869. 



. Archaeological Memoirs relating to the East of Dartmoor. 



8vo. Exeter, 1876. 

 Orsted (Hans Christian). Obituary Notice. See Eoechhammer (G.). 

 Orth (Albert). Geognostische Durchforschung des schlesischen Schwemm- 



lacds zwischen dem Zobtener und Trebnitzer Gebirge. 



8vo. Berlin, 1872. 



. Ueber Untersuchung und kartographische Aufnahme desBodeus 



und Untergrundes grosser Stadte. (Tract.) 8vo. Berlin, 1873. 



. Bericht liber die Bodenarten, Bodenkarten und bez. geologischen 



Karten auf der Weltausstellung zu "Wien 1873. (Tract.) 



8vo. Berlin, 1873. 



