'40, 191, 196--'] Ig 195

I«Ondary .5c:](ual characteristics It ,.,

segregation 10 55.fig selection 16 71; 19 194-101; 1068

facility to 190 methodical 10 158 Romans 10 161 sexual It 648 unconJciouslo lfig.171

sex ratiolt 156 .5c:](ualcharacteristic transfer It 1146 suualselc:ction It 648 smiter Ig 145 spot Ig 145. 190 'Staarhalsige Taube:' I' 147(50) slernum·9 154

disuse., 161-8 tail-feathers Ig145-6 tambour sa Pigeons, trumpeter tonguelbc:lIk Ig 155 tree habitat 19 167 Tronfo Igl511 trumpeter Ig 141. 190 tumblerts64.154.518; 161119,

408; 19 156--40 Dutch roller Ig 158 hereditary behaviour 15 '54. !l18 history I, Igi India I, 190 Kalmi-Lotan .9158 LotanlLowtun Igl!l7-3 lowerjaw 19 1511(l1g.1I78) modification 101gB scapulalfurculum.9 154 (figs 118.