24 



The Journal of Heredity 



GRACE'S LAST TWINS BY MEADOW HOLM JENNIE KING 

 Born Mar. 29, 1921. Photo taken at six days of age (Fig. 16.) 



7th, twins, males, by Meadow Holm Jennie 

 King. 218701. 



Note that she has twinned to service by 

 three bulls. 



It has been suggested that one might 

 develop a family of cows which would 

 produce a high percentage of twins; 

 but of the nine sets of twins in this 

 family, six sets were male and freemar- 

 tin and three sets were males. Was it 

 mere chance that there was no set of 

 females? Three of the freemartins 

 were kept until of breeding age. Only 

 one came in heat and was bred, but 

 failed to conceive. An exanination of 

 the vagina showed it to be abnormal. 



The cows in this family are good pro- 

 ducers as well as reproducers: 



The highest record of No. 57 was 21,177 

 lbs. milk, 888 lbs. 80% butter. 



The highest record of No. 70 was 17,492 

 lbs. milk, 740 lbs. 80% butter. 



The highest record of No. 107 was 22,161 

 lbs. milk, 940 lbs. 80% butter. 



The highest record of No. 124 was 20,377 

 lbs. milk, 953 lbs. 80% butter. 



No. 90's entire 

 record is as follows: 



milk and butter 



6th (incomplete) 



She is now nine years old and produc- 

 ing well during her 6th lactation period. 

 She has never been officially or semi- 

 officially tested for advanced registry. 



The calves produced by these cows, 

 of which 30 were males, and 23 were fe- 

 males and freemartins, were as follows: 



