[1920-1922] 



88 



Idaho (U.S.A.), Tertian,-. — 0, Mans- 

 field, G. R. ; 1, Buwalda, J. P. ; 2, 

 Chaney, R. W. 



( ), water. — 0, Grover, N. C, 



1-4 ; Herron, W. H., 2 ; 1, Daven- 

 port, R. W. ; Grover, N. C, 5 ; 

 2, Baldwin, G. C. 



Idar (Bombay Presidency). — 1, Mid- 

 dlemiss, C. S. 



Idjen (Java).— 0, Hotz, W. 



Idocrase. — 1, Boeris, G., 3. 



Ifton (Mon). — 1, Dixon, E. E. L., 

 2. 



Igneous centres. — 1, Kemp, J. F., 3. 

 complex, Carnarvonshire. — 2, 



Silvester, N. L. 

 ■ , Transvaal. — 2, Shand, S. 



J., 2. 



Igneous rocks. — 0, Cloos, H., 2 ; 



Whitney, W. B. ; 2, Goldschmidt, 



V. M., 15 ; Johannsen, A. 

 ■ , alkaline. — 2, Evans, J.W., 



3- 



■ , analyses. — 0, Washington, 



H. S. ; 2, Richardson, W. A., 2. 

 ■ , classification. — 0, Holmes, 



A., 6 ; Johannsen, A. ; Mathews, 

 E. B., 2 ; Washington, H. S., 2 ; 



I, Hackman, V. ; Pirsson, L. V. ; 

 2, Niggli, P., 6. 



■ ■ , composition. — 0 & 2, 



Clarke, F. W. 

 , crvstallization. — 1, Vogt, 



J. H. L., 3 ;" 2, Vogt, J. H. L. 

 , densities. — 0, Iddings, J. 



P. 



, druses. — 1, Kcenigsberger, 



2. 



, formation. — 0, Erdmanns- 



dcerffer, O. H. 

 , intrusion. — 0, Benson, W. 



N. ; 2, Kemp, J. F., 3. 



, life in. — 1, Galippe, V. 



, magnesian group. — 1, 



Dixey, F., 2 ; Tilley, C. E., 3 ; 



2, Dixey, F., 3 ; Tilley, C. E., 3. 

 , metamorphism &. — 1, 



Barrell, J. 

 , mineral resources &. — 0, 



Roux-Brahic, J. ; 1, Rastall, R. H., 



2. 



, minerals &. — 0, Seder- 

 holm, J. J. ; 2, Berg, G., 8. 



, nomenclature. — 0, La- 



croix, A., 2. 



, silica in. — 0, Thomson, J. 



A., 4 ; 1, Eyles, V. A. 



, textures. — 0, Wright, F. 



E., 2. 



. See also Granite, In- 

 trusions, Lavas, &c. 



' Igneous sedimentation,' Mars &. — 0, 

 Guebhard, A. ; 1, Guebhard, A., 4. 



Igric (Bihar). — 1, Kormos, T., 6. 



Iguanodon. — 2, Reis, O. M., 2. 



Ijolite, Kola Penin. — 0 & 1, Brenner, 

 T. 



, Transvaal. — 2, Shand, S. J. 



Illasi (Venetia). — 0, Fabiani, R. 



Ille-et-Vilaine (France). — 0, Dautzen- 

 berg, P., 2 ; Kerforne, F., 3 ; 1 

 Duplessix, E. ; Kerforne, F., 3 • 

 2, Collin, L., 3 ; Kerforne, F. J., 3.' 



( ), geology.— 0, Kerforne, 



F., 4, 5, 7, 8 ; 1, Kerforne, F., 5 ; 

 Milon, Y. 



( ), Tertiarv. — 0, Bezier, T. ; 



DoUfus, G. F., 19;" 1, Dollfus, G. F., 

 13 ; 2, Dangeard, L., 2 ; Milon, Y. 



Iller R. area (Bavaria). — 1, Mueller, 

 J. 



IUinois (U.S.A.).— 0, Cady, G. H. ; 



Hinds, H. ; Shaw, E. W., 5 ; 



2, Crook, A. R. ; Savage, T. E., 1, 



2 ; Shaw, E. W. 

 ( ), mineral resources. — 0, 



United States, 5, 6, 8 ; 1, Boericke, 



W. F. ; Cadv, G. H. ; Ede, J. A. ; 



2, Cady, G. H. ; Parmelee, C. W. 

 ( ), Palaeozoic. — 0, Savage, 



T. E. ; WeUer, S. ; 2, Dake, C. L. 

 ( ), Pleistocene. — 1, Leigh- 

 ton, M. M. ; 2, Baker, F. C. ; 



Leighton, M. M. 

 ( ), water. — 0, Grover, N. 



C., 3-5 ; 1, Grover, N. C, 2 ; 2, 



Grover, N. C, 4. 

 Illinois State Museum. — 1, Crook, 



A. R. 



Ilm valley (Thuringia). — 1, Michael, 

 P. 



Ilmenite. — 0, Lacroix, A., 6 ; 1, 

 Bianchi, A., 4 ; 2, Perrier, C. ; 

 Watson, T. L. 



Ilsemannite. — 2, Cook, C. W. ; Ditt- 

 ler, E., 4. 



Ilsenburg marl, Prussia. — 0, Bcehm, 



Ilvaite. See Lievrite. 



Imbros I. (Greece). — 2, Ktenas, A. 



Immersion method, refraction. — 1, 



Spangenberg, K., 2 ; 2, Spangen- 



berg, K., 1, 3. 

 Implements, bone & horn. — 0, Rutot, 



A. ; 1, Freudenberg, W. 

 , , Argentina. — 1, Ameghino, 



F., 7, 9, 11, 12 ; Frenguelh, J., 2. 



, , Devon. — 0, Lowe, H. J. 



, , Glamorgan. — 0, Sollas, 



W. J. 



, , Hebrides. — 0, Bishop, A. 



H. 



, , Istria. — 2, Battaglia, R. 



, , Yorkshire. — 0, Arm- 

 strong, A. L. 



, bronze & iron, French Indo- 



China. — 2, Mansuy, H., 6. 



, , Norway. — 0, Brcegger, W. 



C. ; 2, Petersen, J. 



, flint & stone. — 0, Lankester, E. 



R., 2 ; Moir, J. R., 4 ; Rutot, A. ; 

 1, Sheppard, T., 5 ; 2, Howchin, 

 W., 4. 



, , Antrim. — 0, Lankester, 



E. R. 



, , Argentina. — 0, Frenguelh, 



J., 4 ; 1, Ameghino, F., 7, 9, 11, 12 ; 

 Frenguelh, J., 2 ; 2, Ameghino, F. 



v 



