REPORTS OF CASES. 
AN OBSCURE CASE.* 
By I. B. Irwin, V.S., Stonewall, Can. 
My reasons for the rather peculiar heading given to this paper 
and my object in writing an account of the following case are: 
First, it is amongst the most interesting that I have had the satis¬ 
faction of watching, and, second, since I am unable to account 
for the symptoms shown or to find a known cause for them I 
have written these lines hoping there may be some members 
present who have seen cases of a similar nature, and if they 
know the cause will give us the benefit of their experience. 
In the afternoon of July 17, last, a telephone message came 
to our office stating that a cow owned by a party at the other 
end of the city had taken suddenly ill and required treatment at 
once. I was unable to get any symptoms of the case over the 
’phone, as a neighbor had sent the message, so taking such medi¬ 
cine and instruments as I thought necessary, started at once for 
the place. On arriving I found a dark red Jersey cow of medium 
size and fairly good condition and from outward appearances 
looked to be of a good milking strain. She had calved about 
two months previous and had been milking well since, having 
spent the summer in the pasture. 
I found her standing in a small field where she had been 
pasturing for the last few weeks, and on one side of this field 
were some vacant lots, now used as a public dump, and to this 
she had access. 
The boy who came with me to the field told me that she had 
been having dizzy spells all day and that she would begin walk¬ 
ing around in a circle getting faster and faster steadily until 
finally she would fall, when she would lie for about ten or fifteen 
minutes, when she would again get up and apparently be all 
right for perhaps an hour, when another d : zzy spell would come 
on as before and she would fall again. She had been having 
these spells since about 9 o'clock in the forenoon. On examina- 
* Presented to the Veterinary Medical Association of Manitoba, Brandon, March, 
1912. 
339 
