DAIRY, SEED IMPROVEMENT, STOCK BREEDERS^ MEETINGS. 23<; 



more ova, and (2) of preventing the animal coming in heat 

 during the course of pregnancy. 



The case described presents for consideration certain definite 

 and clearcut results bearing on the problem of secondary sex 

 characters. This cow had been a perfectly normal female and 

 had performed all the reproductive functions, both primary and 

 secondary, of the sex. It later assumed certain of the secondary 

 characters of the male, both in respect of structure and be- 

 havior, with perfect definiteness, and, so far as the characters 

 concerned go, completeness. The outstanding, and so far as 

 could be determined, the only significant, anatomical and physio- 

 logical diflference between the ovaries of this abnormal cow and 

 those of a normal one, consists in the fact that the former 

 lacked any of the tissue normally composing the yellow bodies 

 or corpora lutea. 



Cystic degeneration of the ovaries is one of the commonest 

 causes of sterility (failure to breed) in cattle. No cure for it 

 has been discovered up to this time, except a form of surgical 

 interference, which has been reported from Switzerland as suc- 

 cessful in a percentage of cases when applied by a skilled veter- 

 inarian. This is, however, not a practical treatment for the 

 ordinary farmer. The results of the present study suggest, as 

 worthy of trial, the administration of corpus luteum substance 

 as a therapeutic measure in these cases of cystic degeneration. 

 There is some reason to believe that if the case were not of 

 too long standing a cure might be effected by this means. It 

 must be understood that in the light of present knowledge this 

 is merely a suggestion, and is not put forth as a guaranteed 

 cure in any sense of the word zvhatever. It would, however, 

 seem worth a trial. The use of this material for somewhat 

 analogous conditions in human medicine has met with marked 

 success in some cases. 



Some experiments along the line suggested are being carried 

 on at the present time. 



V. The Inheritance oe Miek and Butter Fat Pro- 

 ducing Ability. 



Work on this line has proceeded during the year along the 

 two general divisions outlined in earlier reports, viz., (a) the 



