356 



INDEX 



Multiple factors, 219-261 

 Mutation, 35 

 Myxine, 95 



N 



Nabours, 69, 209 

 Nachtsheim, 140 

 Nematodes, 174 

 Nicotiana alata grandiflora, 232 

 Nicotiana forgetiana, 230-231 

 Nightshade, 26, 177 

 Nilsson-Ehle, 225-226 

 Non-disjunction, 193, 199 



O 



Oenothera, 26 

 Oenothera gigas, 175-176 

 Oenothera lamarckiana, 175, 193 

 Oenothera lata, 193 

 Oenothera semilata, 193 

 OpaUna, 305 

 Operculina, 305 

 Orchestia, 94 

 Oudemanns, 116 



Paramecium, 284, 285, 295, 296, 



299, 302 

 Pascher, 306-307 

 Parasitic castration, 114-116 

 Paratettix, 209-210 

 Parthenogenesis, 97 

 Pea, 26, 69 

 Pea comb, 270 

 Pelargonium, 185-186 

 Peltogaster, 114 

 Petromyzon, 95 

 Phalangium, 94 

 Phillips, 250 

 Phragmatobia, 88-90 



Phylloxerans, 101-105 

 Pigeons, 69-70, 233, 240 

 Pinney, 154 

 Plastids, 182 

 Plough, 68, 77 

 Polarity, 76 

 Polytoma, 97 

 Polar bodies, 163 

 Porthetria (see Lymantria) 

 Potato beetle, (see Leptinotarsa) 

 Potency, 254 

 Prseformation, 277 

 Presence and absence, 275 

 Primula, 38-39, 69, 77, 176, 194 

 Pristiurus, 158-160 

 Protozoa, 282-306 

 Punnett, 5, 113, 168 

 Pygajra, 188 



R 



Rabbits, 204-205, 235, 240, 269 

 Rats, 69, 280 

 Reduplication, 74, 168 

 Reversible mutations, 206 

 Rhabdonema, 96 

 Root, 294 

 Rose comb, 270 

 Rosenberg, 154 

 Rotifer, 97 

 Roux, 77, 278 

 Rudimentary, 34-35 



S 



Sacculina, 114 

 Schleip, 96 

 Schmitt-Marcel, 106 

 Schreiner, 95 



Sea-urchin, 106, 143, 147, 149 

 Sebright, 107 



Secondary sexual characters, 106- 

 116 



