Multiple factors 101-102 



Mutations 21, 24, 68, 154 



" degressive 50 



" progressive 50, 67 



theory 64, 66 



Mutilations 58 



N 



Nageli 21, 81 



Natural selection, 



5, 14, 15, 19, 66 

 Nature and Nurtui'e, 45. 127, 161 



Naudin SI 



Nectarines 98 



Neo- Darwin ism 57, 58 



Neo-Lamarckism 57, 58 



Nephrolepis 37 



Newman, L. H 156, 158 



Nilsson 51 



Nilsson-Ehle 102, 159 



Normal curve 24, 25 



Nucleus 40, 41, 130-131, 141 



Nulliplex 95 



Oats . . . 

 OEnothera 



.36, 98, 



157- 

 . .66, 



158 

 68 



Ontogeny 17 



Oranges 28, 79 



" navel 28 



Organic selection 19 



Origin of domesticated ani- 

 mals and plants 33-39 



Origin of life 21, 22 



" species 5, 13 



Orthogenesis 20, 21 



Ovaries, transplanting of . . 62 

 Ovum 40, 130, 145 



Pangen theory 5? 



Pangenesis 52 



Panmixia 5,') 



Parallel induction 63 



Paramoecia .• 29, 74 



Parthenogenesis 40, 144 



Peach 98 



Pearl, R 118-119. 151, 169 



Pearson. Karl 45-48 



Peas, garden 37. 83 



" Mendel's experiments 



with 83 



" sweet 38, 104 



Pedigree 152 



Phenotype 84. 86. 95 



Phylogeny 17 



Pigeons IS 



Plant breeding, 5, 47, 152, .1.".4 



Plato 162, 163 



Plum 38 



Polar bodies ,. . 135 



Pollination 79 



habits SO 



Potato 37 



Poultry 18, 34, 35 



Prepotency 147 



Presence and absence hypo- 

 thesis 95 



Primrose hybrids 98 



Progressive development,.. 18 



mutation 50. 67 



Protoplasm 21, 22, 129 



Punnett, R. C 106-108 



Pure Lines 70-73 



Rabbits 103, 107 



Rats, albino 145, 148 



hooded 103 



Ray 6, .S 



Recapitulation theory 17 



Recessive character, 



82, 83. 86, 91-95, 



Red Fife wheat 



Reduction 29, 



.155 



100 

 157 

 134 

 156 

 153 

 IS 

 29 



39 

 67 



Registered seed . . . 

 Registers, advanced 

 Regressive development . . . 



Rejuvenesence 



Reproduction of animals and 



plants 



Retrograde varieties. 



Reversion . .y 76, 126 



Rimpau 155 



Roan color in cattle 100, 102 



Rose 28. 38 



Rust immunity 102, 160 



Rye 36 



Saunders, C. K 157 



Self-fertilization 78, 80. 146 



Sex. control of 144 



" determination of 144 



" heredity of ...141-142. 143 

 " linked inheritance 110. IIS 

 Segregation of unit charac- 

 ters 82, 86 



Sexual reproduction 39, 40 



" selection 19 



184 



