52 AMERICAN DAIRYlNa. 



the same rye field of clover. Then three cows 

 aborted and on investigation I found plenty of 

 ergot in the rye. The trouble ended when we 

 stopped feeding this»hay. 



Now I can say this: I am thoroughly sat- 

 isfied that ergot caused the abortion in one 

 case. In the other I think it did, but am not 

 sure. I believe I should have lost from one- 

 half to two-thirds of my calves in the last case 

 if I had not isolated and treated the cows. I 

 am confident that there are several causes of 

 abortion in cows. What I know about it is as 

 nothing in comparison with what I do not know. 

 1 often think of what one of the commissioners 

 appointed to investigate the subject by the 

 New York Legislature several years ago said 

 when through with the investigation. He said 

 he did not know as much about the cause of 

 abortion as he thought he did when he com- 

 menced the investigation. 



Hations. — Here I will draw from the Wis- 

 consin Experiment Station "Bulletin No. 38," 

 entitled, "One Hundred American Rations for 

 Dairy Cows." I do this because I believe it is 

 of more value to dairymen than any other 

 material at my command. I will give the name 

 and post-office address of owner or manager; 

 name of breed; the weight of cow; annual 

 yield of milk; annual yield of butter; percent- 

 age of fat in milk, and the ration fed. Prof. 



