[1915-19-] 



476 



Ore deposits, " shoots " in. — Grout, 



F. F., 1. 



Ore-forming compounds, precipita- 

 tion of.— Wells, R. C., 1. 



Oregon (U.S.A.).— Bretz, J. H. ; 

 Dickerson, R. E., 4 ; Foote, W. M. ; 

 Merriam, J. C, 10 & 16; Nomland, 

 J. O., 1 ; Smith, W. D., 3, 5 & 8. 



, minerals. — Lesher, C. E., 1; 



Mansfield, G. R., 1; Washburne, 

 C. W., 1. 



■ , production of metals. — Yale, 



C. G. 



, water-supply. — Henshaw, F. F., 



4 & 5; Marshall, R. B., 3, 4 & 

 10-12 ; Van Winkle, W., 2. 



Oreodaphne. — Sangiorgi, D., 2. 



Oreohelix. — Cockerell, T. D. A., 1. 



Ores, assay curves for. — Perry, E. H. 



, deposition of. — Bacorn, F. W. 



, deposition & enrichment of. — 



Graton, L C, 1 & 2 ; Lindgren, W., 

 3; McLaughlin, D. H., 2; Thomae, 

 W. F. A. ; Tolman, C. F.,fil. 3. 



, electric sorting of — Bergstroem, 



G. ; Nathorst, H. 



, persistence of, in depth. — 



Rickard, T. A. 

 , production of. — Dunlop, J. P., 



2. 



, testing of. — Crook, W. J. 



Orestes.— Girty, G. H., 1. 

 Orford dist. (Quebec). — Harvie, R., 1. 

 Organic deposits, marine. — Vaughan^ 

 T. W., 9. 



structure, in Huronian. — Grout, 



F. F., 9. 



Organisms, rock-bearing. — Jehu, 

 T. J., 1. 



Orgon (S. France). — Cossmann, M., 



5 & 6; Kilian, W., 4. 



Orijarvi area (Finland). — Eskola, P., 



2 & 4; Geijer, P., 11. 

 Orionastrcea. — Smith, S., 2. 

 Oriskany Formation, New York. — 



Clarke, J. M., 4. 



-, Virginia.— Weld, C. M., 1. 



Orixa. — Reid, C, 6. 

 Orkney Is.— Saxton, W. I. 

 Orleanais (France). — Dollfus, G. F., 



6. 



Ormesson ( Seine -et -Marne) . — Ber- 

 geron, J., 2. 



Ornamental stones, Canada. — Parks, 

 W. A., 1. 



Omithella. — Buckman, S. S., 4. 



Ornitholestes. — Osborn, H. F., 7. 



Ornithomimus. — Osborn, H. F., 8. 



Ornopsis. — Wade, B., 2. 



Ornskoldsvik (Sweden). — Carlzon, C. 



Orofino coalfield (Idaho). — -Lupton, 

 C. T., 2. 



Orogenic movements, Katanga. — 



Delhaye, F., 1. 

 Orography, Victoria. — Hart, T. S. 

 Orophocrinus. — Bather, F. A., 1. 

 Orpiment, Maritime Alps. — Orcel, 



J., 2. 



Orria. — Walcott, C. D., 5. 

 Orsa (Sweden). — Loostroem, R., 1. 

 Orthacodus. — Priem, F., 3. 

 Orthaulax. — Dall, W. EL, 2 & 5. 

 Orthechinus. — Clark, W. B., 3. 



Orthis. — Fuchs, A.; Gortani, M., 3; 

 Howell, J. V. ; Kegel, W. ; Man- 

 suy, H., 1 & 4; Reed, F. R. C, 

 3 & 4; Savage, T. E., 4; Twen- 

 hofel, W. H., 1 ; Trowbridge, A. C, 

 3; Vinassa de Regny, P., 3; Wil- 

 liams, M. Y., 11. 



Orthite.— Flink, G., 4. 



Orthoceras. — Diener, C. ; Dunlop, R., 

 2; Fuchs, A. ; Girty, G. H., 1 & 2; 

 Parks, W. A., 2 ; Reed, F. R, C, 3 ; 

 Trechmann, C. T., 2; Trowbridge, 

 A. C, 3; Vinassa de Regnv, P., 

 1; Williams, H. S., 2; Williams, 

 M. Y., 11. 



Orthoclase. — Dittrich, M., 2; Tscher- 

 mak, G., 3. 



Orthodactylus. — Lull, R. S., 3. 



Orthodesma. — Williams, H. S., 2. 



Orthogonal structure, Provenee. — 

 Guebhard, A., 16. 



Orthographic projection, in crystallo- 

 graphy. — Hilton, H., 1. 



Orthonema. — Mansuy, H., 1. 



Orthonota. — Kegel, W. ; Mansuy, H.,1. 



Orthonychia. — Chapman, F., 6; Gar- 

 diner, C. I., 3 ; Gortani, M., 3. 



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



Orthophragmina. — Checchia-Rispoli, 

 G., 14; Cushman, J. A., 2; Dou- 

 ville, H., 8; Newton, R. B., 10; 

 Prever, P. L. ; Rutten, L., 1 & 2. 



Orthopsis. — Clark, W. B., 3. 



Orthorhyncha. — Reed, F. R. G, 4. 



Orthothetes. — Branson, E. B., 5; 

 Etheridge, R., fil., 1; Fuchs, A.; 

 Girty, G. H., 2; Hedstrcem, H., 4; 

 Mansuy, H., 1 ; Weller, S., 1. 



Orthotichia. — Diener, C. 



Orthotoma. — Buckman, S. S., 4. 



Ortonella. — Garwood, E. J., 1. 



Ortonia. — Branson, E. B., 5. 



" Orvales " or " Ovailles," the term. 

 — Girardin, P., 7. 



Orvillite.— Lee, T. H., 1. 



Osagia. — Twenhofel, W. H., 8. 



Osborn, H. F., Biogr. — See Wood- 

 ward, A. S., 18. 



Osilo (Sardinia). — Serra, A., 5. 



Osimo, Giuseppina, Obit. — See Sil- 

 vestri, A. 



Osmerus. — Eastman, C. R., 2. 



Osmosis, in soils. — Lynde, C. J. 



Osmunda. — Baumberger, E., 2. 



Osmundacece, fossil. — Kidston, R., 3. 



Osmundites. — Kidston, R., 3. 



Osoyoos mining dist. (B.C.). — Brewer, 

 W. M., 4. 



Ossiferous beds, Liguria. — Campana, 

 D. del, 2. 



Osteohpis. — Goodrich, E. S., 2; 

 Gregorv, W. K., 1 ; Watson, 

 D. M. S„ 11. 



