326 



riddle: control of sex ratio 



TABLE 4 



Breeding Records — 3914 



(St. alb 



i b* X) 9 St. risoria 641 (old); 1913 = 42 



eggs. 









Series 1 







9A1 



1- 1 



White 140 



9U1 



7-28 



White 144 



9A2 



1- 3 



White, dead 2-3 



9U2 



7-30 



White 151 



1st (4) 



= 2.066 g. 2d (4) = 2.243 g. 



9 VI 



8-14 



White 155 



HI 



4- 4 



Inf. yolk = 1.995 g. 



cTV2 



8-16 



Dark 169 



H2 



4- 6 



Inf. yolk = 2.105 g. 



9WI 



8-22 



White 152 



911 



4-12 



White, killed 4-29 



W2 



8-24 



Soft at pole 



912 



4-14 



White 158 (?2) 



9X1 



8-30 



White 161 



c?Jl 



4-21 



Dark, killed 2-25 



9X2 



9- 1 



White 145 



9J2 



4-23 



White 158 



c?Yl 



9- 9 



Dark 161 



9K1 



4-29 



White 147 



9Y2 



9-11 



White, killed bef. 10-12 



9K2 



5- 1 



White 151 



9Z1 



9-18 



White 



LI 



5- 9 



Broken 



9Z2 



9-20 



White, dead 10-26 



?o"L2 



5-11 



Dark (disap.?) 



9AA1 



9-26 



White 141 



cfMl 



5-18 



Dark 161 (?1) 



9AA2 



9-28 



White 146 



9M2 



5-20 



White 163 



9BB1 



10- 7 



White 150 



9N1 



5-30 



White 150 



9BB2 



10- 9 



White 144 



9N2 



6- 1 



White, killed with ext. 



?9CC1 



10-17 



Dark, dead 11-8 



cfOl 



6- 7 



Dark 150 



9CC2 



10-19 



White, dead 11-10 



9 02 



6- 9 



White 150 



9DD1 



10-26 



White 130 (?1) 



oTl 



8-18 



Dark 149 



9DD2 



10-28 



White 162 (?2) 



P2 



8-20 



Broken 



cfEEl 



11- 6 



Dark 152 



9Q1 



6-28 



White 143 



9EE2 



11- 8 



White 143 



9Q2 



6-30 



White 137 



9FF1 



11-16 



White 166 



9R1 



7- 4 



White 154 



FF2 



11-18 



Broken 



cfR2 



7- 6 



Dark 162 



9GG 



11-26 



White dead 150 . 



?c?Sl 



7-12 



Dark, dead 7-29 



9HH1 



12- 7 



White 



9S2 



7-14 



White, dead 7-31 



cfHH2 



12- 9 



Dark, dead 1-9-15 



9T1 



7-20 



White 140 



9 III 



12-20 



Dark, dead 11-6-15 



o*T2 



7-22 



Dark 164 



9 112 



12-22 



White, 9 da. embr. 



1st 17 



= 5 cf : 12 9 ; 2nd 17 = 4 □ 



" : 13 9 ; 



last 17 



= 2 cT : 15 9 



