[1920-1922] 



48 



Crystal-structure. — 0, Barker, T. V. ; 

 Boone, W. T. ; Bragg, W. L. ; 

 Canac, F. ; 1, Roller, P., 4 ; 

 Schoenflies, A. ; Tertsch, H. ; 

 Walker, W. T. ; 2, Bragg, W. H., 

 2 ; Bragg, W. L. ; Johnsen, A., 10 ; 

 Kalb, G., 6 ; Niggli, P., 5 ; Rinne, 



F. , 6. 



, carbon compounds. — 2, 



Bragg, W. H. 

 , carbonates. — 0, Wyckoff , 



R. W. G. 



— — , chemical valency &. — 



2, Beckenkamp, J., 3. 

 , cleavage &. — 1, Schari- 



zer, R. 



, determination. — 1, 



Wyckoff, R. W. G., 3 ; 2, Wvckoff, 

 R. W. G. 



, hydrogen atoms in. — 1, 



Aminov, G., 4. 



, isomorphous substances. 



— 2, Rinne, F., 9. 



, models. — 0, Whitlock, H. 



P., 2 ; 2, Born, M. ; Muegge, O., 3; 

 Spangenberg, K., 2. 



, molecules &. — 2, Fock, A. 



, rontgenometry &. — 2, 



Gross, R., 3. 



, space-groups &. — 1, 



Wyckoff, R. W. G. ; 2, Johnsen, A., 

 7 ; Niggli, P., 3 ; Weber, L., 2. 



, X-rays &. — 2, Becken- 

 kamp, J. ; Rinne, F., 4. 



Crystal-svmmetry. — 1, Beckenkamp, 

 J., 2 ; '2, Niggli, P., 4- 



systems. — 0, Wherry, E. T., 2 ; 



1, Beckenkamp, J. ; Niggli, P. ; 



2, Beckenkamp, J., 4. 

 Crystalline limestones. See Lime- 

 stones. 



schists. See Schists. 



Crystallization. — 2, Beutell, A. ; 



Bowen, N. L., 3 ; Bruhns, W. ; 



Campbell, J. M., 4 ; Moressee, G., 



2 ; Nacken, R. ; Ray, R. C. 

 , igneous & metamorphic rocks. 



—1, Vogt, J. H. L., 3 ; 2, Cornelius, 



H. P., 4 ; Vogt, J. H. L. 



. See also Recrystallization. 



Crystallization-differentiation. — 0, 



Bowen, N. L., 3. 

 Crystallographic notation. — 2, Hilton, 



H. 



Crystallography. — 1, Stceber, F. ; 



2, Dana, E. S. 

 Crystals. — 0, Canac, F., 3 ; Gaude- 



froy, C. ; Grout, F. F. ; Smith, 



G. F. H. ; 1, Spencer, L. J., 3 ; 

 Tertsch, H. ; 2, Berberich, P. ; 

 Born, M. ; Eitel, W., 2 ; Gold- 

 schmidt, V. M., 4 ; Johnsen, A., 

 12 ; Muegge, O., 17 ; Slawson, 

 C. B., 2. 



, drawing of. — 0, Palache, C, 3 ; 



Porter, M. W. ; 1, Weber, L., 2. 



2, Slawson, C. B. 

 , gnomonic projection. — 0, 



Palache, C, 2, 4. 



Crystals, growth.— 0, Miers, A. ; 2, 



Becker, G. F. ; Kalb, G., 4, 6 ; 



Nacken, R. 

 , interference. — 2, Ehringhaus, 



A., 2 ; Gall, O. 

 , measurement. — 0, Bascom, F. ; 



Palache, C. ; 1, Palache, C. ; 



Parsons, A. L. ; 2, Woyno, T. J. 

 , optical properties. — 0, Bceke, 



H. E. ; Canac, F., 2 ; 1, Berek, M., 

 2 ; Hilton, H. ; Keeley, F. J. ; 

 Liebisch, T., 2, 3 ; Niggli, P., 3 ; 

 Rubens, H. ; Weber, L. ; 2, 

 Johnsen, A., 17 ; Raman, C. V. 



, polarization. — 2, Cheshire, F. ; 



Tutton, A. E. H. 

 , polymorphism &. — 2, Brauns, 



R., 12 ; Muegge, O., 13. 

 , refraction in. — 1, Ehringhaus, 



A., 1-3 ; Raman, C. V. ; Wenzel, 



A. 



, translation-gliding. — 2, John- 

 sen, A., 3, 18. 



. See also Mixed crystals & 



Pseudo-crystals. 



Cserhat (Hungary). — 1, Noszky, E. 



Ctenocltasma. — 0, Broili, F. 



Ctenosaurus. — 2, Huene, F. v. 



Cuba. — 0, Roig, M. S. ; Suarez 

 Murias, E. R., 1,2; 1, Vaughan, 

 T. W. 



, Jurassic. — 0, Brown, B. ; 



O'ConneU, M., 3 ; Roig, M. S., 2. 

 , ore-deposits. — 0, Harder, E. C, 



2 ; 1, Burchard, E. F., 1, 2. 

 Cud Hill (Glos).— 1, Upton, C. 

 Cuenca (Spain). — 1, Gomez, J. R. 

 Cugnon (Luxembourg). — 1, Assel- 



berghs, E., 6. 

 Culebra Is. (W. Indies). — 0, Vaughan, 



T. W., 4. 

 Culicidae. — 2, Edwards, F. W., 2. 

 Culm, Germany. — 1, Hueffner, E. ; 



Kranz, W., 2 ; Weigelt, J. ; 



Zimmermann, E., I., 1, 2 ; 2, 



Andree, K., 3 

 , Maine-et-Loire. — 1, Carpentier, 



A., 3. 



, Silesia (Czechosl.). — 2, Kettner, 



R., 2. 



, Spitsbergen. — 0, Stensice, E. A. 



Cumberland. — 0, Holmes, A., 8 ; 



Kendall, J. D., 3 ; Mehnore, S. ; 



Walther, P. ; 2, Dixon, E. E. L. ; 



Gilligan, A., 2. 

 , Carboniferous. — 0, Smith, B., 



2 ; 1, Smith, B., 2 ; Earle, K. W. ; 



2, Earle, K. W. ; Edmonds, C. 

 , iron. — 0, Kendall, J. D., 1, 4 ; 



I, Atkinson, J. B. ; Goodchild, 

 J. H. ; Jones, A. A. ; Kendall, 

 J. D., 1-3. 



. See also Lake District. 



Cumberland FaUs (Ky.).— 0, Merrill, 



G. P., 5, 9; Miller, A. M., 4; 



2, Merrill, G. P., 2, 3. 

 Cummingtonite. — 2, Carstens, C. W., 



2. 



Cuneo (Piedmont). — 0, Franchi, S. 



