INDEX 



Adaptation, in plant communities, 

 17. 



Adaptation, in protozoan popula- 

 tions, 132 et seq., 140. 



Alechin, W. W., 17, 18. 



Allee, W. C, vi, 11. 



Alpatov, W. W., 105, 111, 150. 



Bacillus pyocyaneus, 97, 105, 118, 125. 



Bacillus subtilis, 92. 



Baer, von, 8. 



Bailey, V. A., 25, 57. 



Barker, H. A., 96. 



Beauchamp, R., 17. 



Beers, C. D., 154. 



Belar, A., 96. 



Biotic experiments, 13. 



Birstein, J. A., 22. 



Bodenheimer, F. S., 25. 



Boltzmann, L., 90, 91. 



Braun-Blanquet, J., 18. 



Brunelli, G., 25. 



Buffon, 8. 



Bumpus, v. 



Calcins, G. N., 114. 



Chance, its role in the struggle for 

 existence, 18, 19, 124, 125. 



Chapman, R. N., 33. 



Chinchin, A. J., 125. 



Classification of the struggle for 

 existence, 3. 



Clements, F. E., 4, 5, 15. 



Cockerell, T. D. A., 128. 



Coefficient of selection, 111. 



Coefficients of the struggle for ex- 

 istence, their calculation, 80. 



Competition in field conditions, its 

 complexity, 3, 12, 13, 111. 



Cutler, D. W., 138, 139. 



Cyprinus albus, 21. 



D'Ancona, U., 25. 



Darby, H. H., 104. 



Darwin, Ch., v, 1, 2, 8, 14, 40. 



De Candolle, A. P., 17. 



Dewar, D., 155. 



Didinium nasutum, 114 et seq., 132 

 et seq. 



Direct struggle for existence, defi- 

 nition, 3. 



Drosophila funebris, 17. 



Drosophila melanog aster, 17. 



Duffield, J. E., 128. 



Du-Rietz, G. E., 19. 



Eddy, S., 91. 

 Ehrenberg, 8. 

 Elementary process of the struggle 



for existence, definition, 2. 

 Elton, Ch., 12, 19. 

 Embody, G. C, 21. 

 Empirical equations, their meaning, 



59, 60. 

 Ephestia, 25. 

 Euphorbia, 18. 



Equation of competition, 44 et seq. 

 Experimental study of the struggle 



for existence, methods of, 6, 



62 et seq., 92, 96 et seq. 



Fisher, R. A., 155. 

 Ford, E. B., 111. 

 Formosov, A. N., 19. 

 Fray, W., 96. 



Gause, G. F., 44, 50, 62, 68, 72, 77 et 

 seq., 94, 101 et seq., Ill, 118 et 

 seq., 133 et seq., 137 et seq., 150. 



Gibbs, 10. 



Goldman, E. A., 22. 



Gray, J., 43. 



Greenwood, M., 114. 



161 



