NINTH ANNUAL YEAR BOOK— PART VI 243 
will not find any symptoms at all. It has been my experience that 
when you find a steer or cow wheezing and if she bloats a little you 
can make up your mind that she is tubercular." 
In regard to this question Jas. Atkinson said: ''I had two cows 
that started to bloat last fall just about the time they were turned 
on some clover pasture. I thought it was the clover and I took them 
off that pasture and I iised a barrel of medicine and had three vet- 
erinarians out there, but I couldn't stop the bloating. Finally I 
tested them and they both reacted and I killed them to find out the 
trouble. They had continued to bloat and a singular thing about it 
was that those two cows were affected identically the same way. 
When we killed them we found on the windpipe a large tuber- 
cular lump. All other parts were absolutely clean. I will always 
be suspicious of cows in that condition." 
0. S. Gilbert of Eldora, Iowa, asked: "Can you make a test in 
the dairy herd from the milk alone?" 
Dr. IMcNeill : ' ' It is not practical to test the milk. You can find 
tuberculosis in the milk, but that is not practical. Test the cows 
and if you have tubercular cows you have tubercular milk. It is 
not practical because it is diluted in the milk. I will say that 
Mohler at Washington tested at one time fifteen samples of separa- 
tor milk that he collected from different creameries in Iowa and he 
found five of these samples had tubercular germs. That, of course, 
comes from the cattle that are tubercular. It came from but one or 
two herds. A man may separate the milk himself. Then the sep- 
arator keeps a lot of that at home and it doesn't affect anybody but 
himself, and as a usual thing he doesn't use the milk himself, but 
the children drink it. If we got it we would think a good deal 
more about the family side of it. We should all be very careful 
of that one thing. We had some cattle one time up at the college, 
some steers that were brought there to be fitted for the International. 
They were tested and reacted, sent to the Chicago market and were 
found to be tubercular. They were purchased from breeders of 
fine stock. One time we bought a steer and brought it there with 
a nui^e cow. The nurse cow reacted and the steer reacted. They 
were both as fat as could be, so that the condition of the animal 
is no index as to the tubercular involvment of the animal. ' ' 
Mr. Yoder asked: ''Have you any advice as to preventing it in 
healthy cattle?" 
Dr. McNeill said: "You must have tubercular germs in order to 
have tuberculosis. If you do not have that you can keep cattle in 
