332 
Morphology, 32 
Mother-cell, 242 
Mutation, 36, 121 e¢ seg., 311 
atavistic, 154 
degressive, 153 
progressive, 153 
retrogressive, 154 
Mutationist, 17 
Nageli, 190, 279 
Natural selection, 42 ef seq., 
48, 121, 155 
Naudin, 170, 220 
Nebular hypothesis, 24 
Neo-Darwinian, 3, 16 
Neo-Lamarckian, 3 
Newton, 175 
Nicotiana, 163, 166 
Normal variations, 82 et seq. 
curve, 95 ef seq. 
Nuclear division, 248 eé seq. 
membrane, 246 
Nucleus, 246 ef seq. 
Nutrition, 76, 155 
Cnothera albida, 143 
biennis, 147 
gigas, 143 
Lamarckiana, 142 et seq., 
311 
leita, 219 
lata, 143 
muricata, 147 
nanella, 144, 147 
velutina, 219 
Ovum, 177, 245 
Oxlip, 8 
Painted Lady, 210 
Parental correlation, 1or ef 
seq. 
Partial Gametic coupling, 200 
INDEX 
Pea, garden, 84, 166 e¢ seq., , 
190, 198, 204 
Peacock, 63, 132 
Pearson, Karl, 77, 80 et seq.s 
108, I10, 136, 229, 285, 321 
Phasmide, 55 
Phyllopteryx, 55 
Physical science, 4 
Picotee, 210 
Pigeons, 34, 45 
Plastids, 240 
Pleurococcus, 241 
Polish wheat, 234 
Polygon, Galton’s, 126 
Populations, 117 
selection in, 119 
Poulton, Professor, 57 
'Primrose, 8, 215 
Primula, 151, 194 
Probability, theory of, 91 
Progressive mutation, 153 
‘Pronuba, 54 
' Protenor belfragi, 270 
Prothallus, 306 
'Protogene, 229 
Protoplasm, 239 
Protozygote, 229 
Puccinia glumarum, 237 
Punnett, R.C., 47, 192, 200 
Pure lines, 109 e¢ seq., 318 
selection in, 119 
Purple Invincible, 210 
Quartile, 97 
Quetelet, 80, 93 
Radium, 22 
Ranunculus, 7 
water, 150, 315 
Recessive characters, 179 
Red Fife, 235 
Reducing division, 258 e¢ seq. 
