66 MAINE AGRICULTURAL EXPERIMENT STATION. lyiS- 



3. Pabhblogical and teratological cases (including herma- 

 phrodii'tism) in which some lesion or d'evelopmentai abnormality 

 of 'the gooads is accompanied by a change in the second'ary 

 characters. 



iT^he present paiper is offered as a contribiTtion to the diaita 

 on this prolblem under the lasit category. 



Description 01^ Case. 



A pure-bred registered Ayrshire cow, Dorothy of Orono 

 (23010), bred and owne^d throughouit her life by the Univer- 

 sity of Maine, had the following history! Her sire was Roder- 

 ick Dhu (8590) and her dam Dorothy Alaska (14912), a cow 

 showing no sexual abnorrnality or derangement of any kind, 

 Dorothy of Orono was dropped October 19, 1906. 



She proved a regular breeder in the earlier years of her adult 

 life, as' is shown by the following table. 



TABLE I. 



Breeding Record of Dorothy of Orono. 



Date of Birth of Calf. 



Sex of calf. 



Notes on Offspring. 



1909, 



Sept. 17 



cf 



Cross-bred calf sold as skinner. 



1910, 



Sept. 10 



9 



Pure-bred Ayrshire heifer Dot Alaska (29353). 







Still owned by University of Maine. Has never 









shown any sex abnormalities. 



1912, 



Feb. 24 



^ 



Cross-bred calf, sold as skinner. 



When 3 years and 327 days old Dorothy of Orono was 

 started on an official milk test of one year, which she completed 

 with a record of 11463 lbs. of milk, carrying 417.71 lbs. oif 

 butter fat. For this record s'he was entered as No. 426 in the 

 Ayrshire Advanced Registry. 



Her complete lactation record is shown in Table 2. 



