138 



ANNUAL REPORTS, SMITHSONIAN INSTITUTION 



Ohio — antiquities — Continued 

 Flint implements in Holmes County, 



Ohio, by H. B. Case. 1877: 267 

 Sketch of Flint Ridge, Licking County, 



Ohio, by Charles M. Smith. 1884: 



851-873 

 Ohio — mounds and earthworks 



Aboriginal burial mounds, Eden 



Township, Seneca County, Ohio, 



by Russell J. Thompson. 1892: 



571-575 

 Ancient earthworks of Ashland Coun- 

 ty, Ohio, by George W. Hill. 1877: 



261-267 

 Ancient relics at Dayton, Ohio, by Aug. 



A. Foerste. 1883: 838-844 

 Art of the great earthwork builders of 



Ohio, by Charles C. Willoughby. 



1916: 489-500 

 Description of mounds and earthworks 



in Ashland County, Ohio, by H. B. 



Case. 1 881: 593-600 

 Double-walled earthwork in Ashtabula 



County, Ohio, by Stephen D. Peet. 



1876: 443-444 

 Earthwork in Highland County, Ohio, 



by J. P. MacLean. 1883: 851-853 

 Earthworks and mounds in Miami 



County, Ohio, by E. T. Wiltheiss. 



1884: 873-876 

 Earthworks at Fort Ancient, Ohio, by 



W. M. Thompson. 1886: 335-337 

 Earth-works near Jones' Station, in 



Buder County, Ohio, by J. P. Mac- 

 Lean. 1 881: 600-603 

 Exploration of a mound near Brace- 



ville, Trumbull County, Ohio, by 



S.N.Luther. 1881: 592-593 

 Mound in Trumbull County, Ohio, by 



F. Miller. 1887: 268 

 Mounds in Butler County, Ohio, by 



J. P. MacLean. 1883: 844-851 

 Signal mounds of Butler County, Ohio, 



by J. P. MacLean. 1882: 752-758 

 Ohio River 

 Habits of the black bass of the Ohio, 



by John Eoff. 1854: 289-290 



Remains on Blennerhassett's Island, 

 Ohio River, by J. P. MacLean. 

 1882: 759-768 

 Ohm, George Simon 



Scientific work of George Simon Ohm, 

 by Eugene Lommel. 1891: 247- 

 256 

 Oil, see Petroleum 

 Ojibway Indians 



Ojibway habitations and other struc- 

 tures, by David I. Bushnell, Jr. 

 1917: 609-617 

 Okapi 



Okapi: the newly discovered beast 

 living in central Africa, by Harry H. 

 Johnston. 1901: 661-666 

 Okinawa 



Botanizing with the Okinawans, by 



Egbert H. Walker. 1952: 359-383 



Oliphant, M. L., Industrial applications 



of atomic energy. 1951: 223-234 

 Omaha Indians 

 Omaha bow and arrow makers, by 

 Francis La Flesche. 1926: 487-494 

 Study from the Omaha tribe: the im- 

 port of the totem, by Alice C. 

 Fletcher. 1897: 577-586 

 Onnes, H. Kamerlingh 

 H. Kamerlingh Onnes, 1 853-1926, by 

 F. A. Freeth. 1926: 533-535 

 Opik, E. J., Time scale of our universe. 



1955: 203-226 

 Opossums 

 Breeding habits, development, and 

 birth of the opossum, by Carl Hart- 

 man. 192 1 : 347-363 

 Optical glass 



Optical glass industry, past and present, 

 by Francis W. Glaze. 1948: 217- 

 225 

 Optics 



Recent progress in optics, by W. Le- 



Conte Stevens. 1895: 117-134 



Orchids 



Development of orchid cultivation and 



its bearing upon evolutionary 



theories, by J. Costantin. 19 13: 



345-358 

 Orchid collecting in Central America, 

 by Paul C. Standley. 1924: 353-377 



