[1915-19-] 



472 



Obolus.— Reed, F. B. C, 4; Walcott, 



C. D., 4, 7 & 8. 

 conglomerate, E. Gotland. — 



Bosen, S. 

 Obourg (Belgium). — Butot, A., L 

 Observatory, Vesuvius. — Viola. C, 2. 

 Inlet (B.C.).— Mc-Connell, E. G., 



3. 



Obsidian, California. — Wright, F. E., 

 9. 



■ , Iceland. — Wright, F. E., 2. 



, Victoria. — Skeats, E. W., 2. 



Obsidianites, New South Wales. — 



Mingaye, J. C. H., 6. 



, Singapore. — Scrivenor, J. B., 2. 



, Victoria. — Walcott, E. H. 



Ocala Limestone, Florida. — Cooke, 



C. W. 



Ocean Basins, geological meaning of. 

 —Horn, E. 



, origin of. — Belot, E., 1 & 



3; Schuehert, O, 5. 



, permanencv of. — Schuc- 

 hert, C, 11. 



currents, dispersion of fruits & 



seeds by. — Morris, Sir D., 1. 



Oceanica, diastrophism in. — Schu- 

 chert, C, 5. 



Oceanography, Pacific. — Littlehales. 

 G. W. 



, modern science of. — Murray, 



Sir J. 



. recent researches in. — Gravier. 



C. 



Ocheto sella. — Canu, F., 11. 

 Ochil Hills (Scotland).— Davison. C, 

 6. 



Ochre, Tasmania . — Twel vetrees, 



W. H., 5. 

 Ochrolite. — Doelter, G, 1. 

 Oeinebra. — Dickerson, B. E., 6; 



Harmer, F. W., 2; Martin, K. 

 Octahedrite. — Mawson, Sir D., 1. 

 O cto coralli a , Cretaceous. — Ni elsen, 



K. B., 4 & 5. 

 Octodontia, sub-Recent, — Allen, J. A. 

 Octotremacis. — Gregory, J. W., 29. 

 Oculirta. — Park, J., 5. 

 Odegaarden (Norway). — Werens- 



kiold, W., 3. 

 Odensala (Sweden). — Anriek, C. J., 1. 

 Odonata, Eocene. — Campion, H. 



, Triassie. — Tillyard, E. J., 4. 



Odontaspis. — Chapman, F., 7 ; Hus- 



sakof, L., 6; Llueea, F. G. ; Piera- 



gnoli, L. ; Priem, F., 1 & 4; 



Stefano, G. de, 4. 

 Odontionella. — Faura, M. 

 Odontosiomia. — Cerulli-Irelli, S., 1 ; 



Cossmann, M., 1 ; Morgan, J. de, 



1. 



Odostomia. — Noerregaard, E. M., 1; 



Dickerson, E. E., 5 & 6. - 

 Oecophyllu. — Cockerell, T. D. A.. 14. 

 Oedcmia. — Munthe, H., 5. 

 Oeonoscopus. — Erasmo, G. d', 1 ; 



Woodward, A. S., 27. 

 Offerdalen (Sweden). — Aminoff, G., 1. 



Ogahulla-Colhns Eegion (Ontario). — 



Hopkins, P. E., 4. 

 Ogiva. — Lecointre, G.. 1. 

 OgivaUna. — Canu, F., 11 & 13. 

 Oglio Basin (Italy). — Patrini, P., 1. 

 Ogmodirus. — Wilhston, S. W., 9. 

 Ogygites.— Eeed, F. E. C. 3. 

 Ogygopsis. — Walcott, C. D., 5. 

 Ohio (U.S.A.).— Bonine, C. A; 



Cushing, H. P.. 2; Foerste. A. F., 



2; Grabau. A. W.. 7; Hvde. J. E., 



2: Prosser, C. S., 2-4*: Stauffer, 



C. E., 3 & 4; Tucker, W. M. ; 



Verwiebe, W. A., 1—3. 

 , Carboniferous. — Case, E. C. 



4: Hussakof. L., 3 ; Lamb. G. F. ; 



Moodie, E, L., 4. 

 , oil &, gas. — Bownocker. -J. A. : 



Condit, D. D., 1-3; Panvitv. L. S. ; 



Van Horn, F. E., 2. 

 Biver Basin. — Gardner, J. H., 



1 ; Horton, A. H., 2 & 3. 

 Shales, Ontario. — William?. 



M. V., 10. 

 Ohmgebirge (Germany). — Walter. E. 

 Oiasso (Spain). — Gascue, F., 2. 

 Oieren (Norway). — Holtedahl, O., 4. 

 Oil. — See Petroleum. 

 Oil-bearing formations, Palaeozoic, N. 



America. — Grabau, A. W., 8. 

 Oilfields. Alaska, — Brooks. A. H., 3. 

 , Alberta. — Dowling. D. B.. 3, 



10, 13, 16 & 17. 

 . Appalachian. — Fuller, M. L., 



1 ; Eichardson, G. B., 3. 

 , British Somali land. — Thomp- 

 son, A. B.. 3. 



, California.— Pack. E. W.. 2 & 4. 



— , Eastern Canada. — Malcolm. W., 



1. 



. Egvnt.— Hume. W. F.. 2 & 3. 



, Illinois.— Blatchley. E. S., 



1 & 2; Shaw. E. W.. 3; Wheeler. 

 H. A. 



, Louisiana & Texas. — Matson, 



G. C, 2. 



, Mexico. — Garfias. V. E.. 1 & 



2; Golyer, E. de, 1-3: Huntley, 

 L. G., 2; Iglesias. C. A.; Ordonez, 

 E., 1, 3 & 5. 



, New Zealand. — See !New 



Zealand, 3 & 4. 



. Oklahoma. — Powers. S.. 9, 11 



& 13; Wegemann, C. H.. 9 & 10. 



, Ontario. — Williams. M. Y.. 9 & 



12. 



, Papua, — Langford. W. G. 2; 



see also Australia, 1 ; & Imperial 



Institute, 6. 

 , Eoumania. — Botez, G., 1 ; 



Schmidt, G. 

 , Eussia, — Adiassevich. A. ; 



Calder, W. ; Holiday, F. A.; 



Huntlev. L. G., 1 : Thompson, 



A. B., 1. 



, Texas. — Matteson. W. G. 2. 



, United States. — Gardner. J. H., 



2 & 3; Hager, D., 3. 



