442 INDEX. 



Ocean, Depths of 91 



Officers of the Institution 5 



Oglethorpe's Settlement of Georgia 166 



Ohio 38,49,50 



Ohio Board of Agriculture 35 



Ohio, Thunder Storm in 201 



Oil in cases of Serpent Bite 132 



Ojibwas, Facts Respecting Language of. 14 



Olbers, Astronomical Discoveries by 138,139, 140, 141 



Olmsted, Prof D , Memoir by, on Aurora Borealis 12 



Olympia 81,82 



Oology, Work on, by Dr. Brewer 42 



Opal of Mexico 39, 45 



Ophibolus Getulus 43 



Ophidium Marginatum 43, 351 



Opium acts on the Brain 129 



Opium given to Camels by Belooches 108 



Orange Trees 196 



Orange and Banana in Region of Pine-Trees 278 



Orbits of the Planets 140,141 



Ore from Tetilla Peaks, New Mexico 316 



Oregon, Winds at 197 



Orenburg 118 



Orfila, Poisons Described by 135 



Organic Nature not fully developed by Man 98 



Orography 273, 281 



Ortyx Virginianus 43 



Osage 85 



Oshkosb, Wisconsin 88 



Osier's Self-registering Anemometer 219 



Ostrich called by Arabs the Camel Bird 103 



Otolithus Regalis, ( Weak-fish) 329 



Ottawa, Illinois 44 



Owen, Dr. D. D 38,43 



Owen, Dr. D. D., Catalogue of Geological Specimens collected by 393 



Owen, Prof R 45 



Oxford, Mississippi, Temperature at 208 



Oyster Fish 340 



Oysters at Beesley's Point 319 



Pacific Railroad „ 37, 80, 95 



Pacific Railroad, Advantages of Pass of Abo for 300 



Pacific Railroad, Line traced by Nature 281 



Pacific Railroad Reports ii6 



Packages from American Institutions for Distribution abroad 35 



Packages sent abroad 32, 33 



Packages received from Europe for American Societies 35 



Pack-Saddle for Camel described 112 



Page, Lieutenant Thomas J 37, 90 



Pagrus Argyrops, ( Big Porgcc) 333 



