INDEX 
A Baur, 38, 185, 186, 204 
Abnormal abdomen, 39-41 Beans, 206, 257, 267 
Abraxas, 70, 79, 83-88, 122 Beaded, 247 
Bee, 139 
Acclimatization, 296 
Age, 42 
Allelomorphs, 3 
Allelomorphs of white, 218 
Allen, 133 
Beneden, van, 162 
Bidder’s organ, 95 
Bierens de Haans, 142 
Biston zonaria, 191, 192 
Altenburg, 77, 241 Sa ee 
Amitosis, 151 ears : \ 35 
YT 
Andalusian, 28 
Anderson, 77 
Anoplophrya, 305 
Antirrhinum, 185 
Aphelopus, 115 
Aphids, 100 
Apotettis, 69 
Arcella, 291, 292 
Arcella dentata, 290, 294 
Arcella polypora, 293 
Ascaris, 79, 152, 172-4 Cc 
Ascaris incurva, 136 Calkins, 302 
Asexual reproduction, 283 - aixins, 
Boulenger, 94 
Boveri, 96, 123, 143-146, 152 
Brauer, 162° 
Breda fowl, 272 
Bridges, 32, 68, 130, 196, 237, 
250 
Bryonia, 79 
Bursa bursa-pastoris, 223 
Campine, 108 
B Canary, 70, 79 
Carchesium, 305 
Back-cross, 50 Carothers, 186 
Baer, von, 100 Castle, 69, 169, 234, 250, 251, 254, 
Balanced lethal, 246 255, 259 
Baltzer, 96, 147, 150, 154 Castration, 107 
Bar, 29, 58, 260 Cat, 70, 79 
Barnacles, 96 Centropyxis, 294 
Bateson, 5, 41, 74-77, 168, 175, Chlamydomonas, 306, 307 
268-270 Chiasmatype, 166 
Batracoseps, 156 , Chimaera, 178 
353 
