INDEX.
Accidental variations, [3], [83].
Acquired variations, [33].
Acracids, [19].
Acræa, [52].
Active selection, [38].
Adaptations, [3], [10], [22], [61], [82].
Adaptiveness, [66] footnote, [67], [74] et seq.
Ageronia, [19].
Anæa, [22].
Articulata, [30].
Artificial selection, [33].
Bär, K. E. von, [73].
"Better" individuals, [76].
Biology, character of research in, [7].
Bonnet, [53].
Bourne, footnote, [54].
Brücke, [40].
Butterflies, [14] et seq., [18] et seq., [81].
Catonephele, [50].
Chance, [61].
Chemical selection, [71].
Chitons, [28].
Coadaptation, [30].
Colorings, protective, [14] et seq.
Constancy of species, [46].
Constructs, [8].
Cormi, [66] footnote.
Correlation, [21].
Danaids, [19].
Darwin, [11], [25], [29], [36], [38], [66], [81], [83].
Definite variation, [3], [4], [60], [76]-[79], [82].
Degeneration, [30] et seq., [39] et seq. [55], [63], [64], [79].
Determinants, [6] et seq., [10], [36] et seq. [42], [54], [58].
Developmental mechanics, [8], [9].
De Vries, [40].
Dimorphism, [58].
Directions of variations, [83].
Dixey, [51] footnote.
Dohrn, [81].
Driesch, Hans, [12].
Empedocles, [75].
Epigenesis, [53] footnote, [58], [59].
Euploids, [19].
Europeans, exempt from malarial fevers, [82].
Eurypheme, [22].
Evolution, [53] footnote, [59].
Fireworks, determinants and ids compared to, [7].
"Fits," [6] footnote.
Fluctuations of development, [74]-[75].
Formative laws, [17] et seq., [23].
Frog, [14].
Functional adaptation, [29].
Functionless parts, [64].
Galton, [36].
Germs, [7] et seq., [40] et seq.
Germinal selection, [3], [39], [44], [50]-[53], [59], [63], [66]-[68].
Germinal substance, [55] et seq.
Haase, Eric, [70].
Heliconids, [19], [20], [51] footnote.
Heredity, [4] et seq.
Hertwig, O., [54] footnote, [58], [59].
Histonal selection, [66].
Huxley, Thomas, [12].
Hypna, [22].
Hypotheses, nature of, [5] et seq.
Ids, their theoretical character, [7].
Imagination, its function in science, [4].
"Imperfect" formations, [81].
Individual variations, [73] et seq.
Inertia, law of organic, [15].
Internal forces of evolution, [16], [23], [24], [31], [60], [82]-[4].
Intrabiontic selection, [29].
Ishikawa, Professor, [34].
Japanese cocks, long-tailed, [34], [44], [78].
Katagramma, [22].
Knowledge, its character, [5].
Lamarckian principles, [24], [29] et seq., [31] et seq., [38], [63]-[64], [68], [84].
Leaves, imitated by butterflies, [20] et seq.
Locomotive, simile of, [11].
Malthusian principle, [65], [67].
Markings, butterflies', [16] et seq.
Meristic, [18].
Minot, S., [54] footnote.
Models, mental, [4] et seq.
Molecules, [58].
Morgan, Prof. C. Lloyd, [32], [71], [83].
Müller, Hermann, [77].
Mussels, [28].
Mutations, [31] footnote, [72]-[76].
Nägeli, [4], [11], [24], [60], [82].
Neumayr, [72].
Newton, [5].
Nutrition of determinants, [36], [37], [41], [47].
Nymphalidæ, [21].
Ontogenesis, [8].
Orr, Henry B., [69].
Osborn, Prof. H. F., [33].
Owen, Richard, [11].
Paleontology, [31], [73], [75], [76].
Palms from Cordilleras, [82].
Pangenes, [40].
Panmixia, [15], [39], [42], [43], [64].
Parallecta, [23].
Parts, struggling of the, [29], [39], [66]-[67].
Passively functioning parts, [30] et seq., [64].
Personal selection, [30], [41], [42], [45], [52], [64]-[86], [80].
Phyletic variation, [31]-[32] footnote.
Phylogenesis, [8].
Phylogenetic variations, [31]-[32], [73].
Plasomes, [40].
Plus and minus variations, [35], [42], [46], [50], [79]-[80].
Polymorphism, [58].
Poulton, [64] footnote.
Predestined variation, [4].
Pre-established harmony, [25].
Preformation, [53].
Protective colorings, [14] et seq.
Protogonius, [22].
Pseudocræa, [52].
Qualitative modifications, [46].
Quantitative changes, [46]-[47].
Retrogressive development, [38].
Round-worms, eggs of, [28].
Roux, Wilhelm, [29], [39], [65], [66].
Salamis, [22].
Scott, Prof. W. B., [31] footnote, [72]-[74].
Segmentation, [10].
Selection, natural, [10], [25] et seq., [50], [51], [67], [69]-[73], [81], [82].
Selective value of variations, [60].
Semper, [69].
Siderone, [22].
Snails, [28].
Spencer, [14], [28], [29], [40], [53], [56], [80].
Struggle for existence, [65].
Survival of the fit, [52].
Symphædra, [22].
Tegetmeier, W. B., [34].
Teleological principles, [10], [16], [25].
Theories, nature of, [5] et seq.
Turbellaria, [28].
Units, vital, biological, physiological, etc., [8], [40], [41], [53], [56], [65], [80].
Useful modifications, value of initial stages of, [80]-[82].
Utility, [11], [18], [33], [45], [48], [62], [63], [82].
Variations, necessary, their constant presence, [26] et seq., [31] et seq., [61];
generally, [3], [11]-[14], [61], [71] et seq.
Waagen, [72].
Wallace, [11], [25], [29], [51], [66], [81].
Weldon, [36].
Whale, hind leg of, [42], [56], [80].
Whitman, C. O., [53].
Wiesner, [40].
Wings of butterflies, [14] et seq., [47]-[52], [56].
Wolff, K. F., [53], [62], [63], [69].
"Worse" individuals, [76].
Zero-point of variation, [36] et seq., [45], [74], [79].