365 



[1915-19-] 



Dcndraster. — Clark, W. B., 3. 

 Dendrites, of manganese, in trachyte. 



— Becke, F., 4. 

 Dendrophyllia. — Nomland, J. O., 1 



& 4. 



Dendrozoum. — Fuchs, A. 

 Dcnsiphyllum. — Smyth, L. B. 

 Density, of alluvium. — Collet, L. W., 

 9. 



variations of, in relation to 



geological structure. — Heim, Alb., 

 3. 



. See also Specific gravity. 



Dent de Morcles (Switzerland). — - 



Gagnebin, E. ; Hartmann, P. ; 



Lugeon, M., 3. 

 Dent du Midi (Switzerland). — Loys, 



F. de, 1-3. 



Dentalium. — Clark, B. L., 5; Dall, 

 W. H., 5; Dunlop, R., 2; Girty, 



G. H., 1; Marshall, P., 8; Martin, 

 K. ; Pilsbry, H. A., 3; Ravn, 

 J. P. J., 5; Stefani, C. de, 4; 

 Trechmann, C. T., 2 & 5; Waring, 

 C. A. 



Dentdale (Yorkshire). — Hobson, B., 

 1. 



Dent'ex. — Priem, F., 1. 

 Denticula. — Lozano, E. D., 3. 

 Dentition. — See Teeth. 

 Denudation. — Gregory, H. E., 5; 



Jeffreys, H., 4; Shaw, E. W., 6. 

 ■ , rain & rivers in. — Bonney, T. 



G„ 1. 



, river, limitations of. — Keyes, 



C. R., 7. 



Denver Basin (Colorado). — Richard- 

 son, G. B., 2. 



Deposition, in arid regions. — Keyes, 

 C. R., 5-7. 



, in structural depressions. — 



Hager, D., 1. 



, marine. — Cotton, C. A., 5. 



Depression, Sea of Marmora. — Arabu, 

 N., 3. 



Depressions, structural, deposition 



in. — Hager, D., 1. 

 Derby, O. A., Obit. — See Anon., 22; 



Branner, J. C. ; & Woodward, 



A. S.,- 8. 



Derbyia. — Diener, C. ; Etheridge, R., 



fd., 1 ; Girty, G. H., 1. 

 Derbyshire. — Baker, E. A. ; Bemrose, 



H. H. ; Day, H., 3 ; Sargent, H. C, 

 3. 



, coal measures. — Fearnsides, 



W. G., 3 & 4; Varney, W. D. 



, gypsum breccia. — Smith, Ber- 

 nard, 3. 



, iron ores. — Cantrill, T. C, 7. 



, lead mining in. — Stuckey, L. C. 



■ , petroleum in. — Sington, T. 



Derc-Ferna cavo (Kilkenny). — 



Praeger, R. L., 3. 

 Dereel (Victoria). Dunn, E. .)., 4. 

 Derna (Cyrenaica). — Prever, P. L. 

 Des Moines Valley (Iowa). — Lees, J. 



Deschutes R. (Oregon). — Henshaw, 

 F. F., 4. 



Desert, Colorado, reclamation of. — 

 Sykes, G. 



Desert formations, Permian. — Ferrar, 



H. T., 1. 



— - — ranges, scarps in. — Keyes, C. R., 



sandstones, N.S.W. — Paddi- 



son, A. 



Deserts. — Gregory, J. W., 14. 



, Mexico. — Wittich, E., 2. 



, erosion in. — Keyes, C. R., 3, 



5 & 6; Lawson, A. C., 1. 

 , land forms in. — Keyes, C. R., 



10. 



, vegetation in. — Schrceter, C. 



Desiccation, of the Earth. — Gregory, 



J. W., 13. 

 , in Africa. — Edwardes, H. S. W. ; 



Marais, E. N. ; Schwarz, E. H. L., 



7. 



Desirade R. (Var). — Zurcher, P., 2. 

 Desmiophyllum. — Mceller, H. 

 Desmoceras. — Chaput, E. 

 Desmoceraticla?, classification. — Dou- 



ville, H., 19. 

 Desmostylus. — Hay, O. P., 3; Matsu- 



moto, H., 6. 

 Desmoulea. — Harmer, F. W., 2. 

 Destinezite. — Doelter, C, 1. 

 Destourbes Mt. (Basses-Alpes). — 



Guebhard, A., 6 & 7; Kilian, W., 



12. 



Detrital deposits, Cretaceous, Var. — ■ 



Repelin, J., 3. 

 Detroit R. series, Ontario. — Stauffer, 



C. R., 2. 

 Deuteromya. — Cossmann, M., 7. 

 Devillian, Belgium. — Fourmarier, P., 



4. 



Devils Lake (Wisconsin). — Trow- 

 bridge, A. C, 2. 



Devitrification, of glass. — Le Chate- 

 lier, H., 1. 



Devon R. (Scotland). — Rhodes, J. E. 

 W., 3. 



Devonaster. — Schuchert, C, 2. 

 Devonian, America. — Clarke, J. M., 

 3-5. 



, Alsace. — Lapparent, J. de, 6. 



, Altai Mts. — Tolmatcheff, I. P. 



, Asturias. — Termier, P., 6. 



, Belgium. — Asselbergs, E., 1-3; 



Bather, F. A., 21; Dubois, J.; 



Fourmarier, P., 3; Maillieux, E., 



I, 4 & 6. 



, Canada. — Kindle, E. M., 5. 



, Carnic Alps. — Gortani, M., 3. 



, Cornwall.— Collins, J. H., 2. 



, Devonshire. — Arbor, E. A. N., 



8; Evans, J. W., 9; Rogers, I. 



, Falkland Is.— Clarke, J. M., 12. 



, Iowa. — Fenton, C. L. 



, Ireland. — Johnson, T. ; Mat- 

 thew, G. F., 3. 



, Luxembourg. — Maillieux, E., 5. 



, Maine.— Williams, H. S., 2. 



