330 MAINE) AGRICULTURAL EXPERIMENT STATION. I912, 



TABI.E IS 



Showing the results of all matings of class 7 3 (S y^ class 6 $ 5 



Jn-^2 • /n^2 /\ J'1^2 • C l^l^ 



Number of Individ- 

 uals Involved in 

 Matings of This Type 



Winter Egg Production of Adult Daughters 



c?c^ 



?9 



Class Over 30 



Under 30 



Zero 



Total adult 9 

 offspring 



5 



11 



Observed 

 Expected 



li 

 



16^ 



18 











18 



Mean winter egg production of all 

 daughters in designated class .... 



48.00 eggsi 



14.44 eggs 







1 The reco 



rd of the sin 



gle ' ' Over 3 



0" bird. 



TABLE 



16 







Shotnng the results of all matings of class 7^3 with all classes of 2 2 

 General Summary 



Number of Individ- 

 uals Involved in 

 Matings op This Type 



Winter Egg Production of Adult Daughters 



c?c? 



99 



Class 



Over 30 



Under 30 



Zero 



Total adult 9 

 offspring 



11 



146 



Observed 

 Expected 



243.0 



255.5 



149.0 



146.5 



10 







402 



Mean winter egg production of all 

 daughters in designated class .... 



63.67 eggs 



15.37 eggs 



eggs 





From these tables the following points would appear to be 

 definitely established : 



I. The numbers of different individuals used as parents in 

 these matings and also the numbers of adult daughters obtained 

 from them are great enough to give an adequate test of the hy- 

 pothesis under discussion. In other words, we are not dealing 

 here with the results of a few matings, and a small oft'spring 

 series. One hundred and forty-six separate and distinct mat- 

 ings to test out males of one gametic constitution must be re- 

 garded as an adequate number. 



