208 



RAYMOND PEARL 



V. With 9 9 9 indicated to be of class 2 = fLiLi . FUU 



9 Progeny 



Winter Production: Over 30 



Observed 10| 



Expected 10 .5 



Mean winter egg production of 



all daughters in indicated 



class 47.00 eggs 19.60 eggs 



Winter Production: 



Observed. .• 



Expected 



All 9 Progeny 



Over 30 



19 



19.1 



Mean winter production. 



Under 30 

 21 



46.00 eggs 19.60 eggs 



Zero 

 4 

 2.9 



eggs 



The agreement here between observation and expectation is 

 indeed remarkably close, and with a fairly large progeny. 



Summary of results of all mating s of class 4 fnales. Proceed- 

 ing as before we may bring together here the results for each par- 

 ticular gametic combination taking all individuals together. 

 While class 4 males were not used as often in these experiments as 

 those of class 7, still the numbers involved are sufficiently large 

 to give quite definite evidence regarding the segregation of fecun- 

 dity factors. 



TABLE 17 



Showing the results of all matings of class 4 d'c^ X class 19 9 



fUU . fhh X /L1L2 . Fhh 



