220 Maine Agricultural Experiment Station. 1918. 



multiple birth is desired. I shall be greatly obliged if you aid the solu- 

 tion of this important problem by filling out this blank to the best of 



your knowledge. 



Breeding History of Dam 



Were these Twins her first' calves? 



If not, what has been her previous breeding history? 



(The following tabular arrangement may be used in answering.) 



Pregnancy Year J No. of Young Sex of Young Sire of Calf or Calves 



Did any of the two grand-dams, or four great grand-dams ever have 



more than one calf at birth ? 



If so please name them 



Do you know of any tendency to multiple births in any of the relatives 



of either the sire or dam of these calves? (Give as many 



particulars as you can) 



Has the sire of these Twins ever sired any other twins or triplets?.... 



If so give Names and Dates 



Twin Descriptions. (If these be triplets name unrecorded animal) 



Are either or both animals sterile ? Name which 



Do the females come in Heat? Will they take the bull? 



If not, do they show any tendency to cover cows? Cite cases 



If a freemartin or sterile, describe the external appearance of the crest, 



udder and genital organs 



What is your breeding practice with f reemartins ? 



Do 3-0U register a freemartin before it has bred? Have you had 



any other multiple births in your experience? If so, please 



describe them 



Name of Twins 



Dam 



Sire 









For the sake of helping to get definite information on cattle twins, would 

 you be willing to let me know should other twins occur and fill out a 



similar blank ? 



Give any other information you can on the back of sheet. 

 In the above connection the cross-bred herd has furnished 

 a heifer twin to a bull which is of great interest both practically 

 and theoretically. This animal Cross-bred No. 19 came in heat 



