502 
j. m’clintock. 
allowed to remain in five days, when I removed and closed the 
opening. In about three weeks difficult breathing came on. and 
finding the obstruction was at the point where I had operated, 
and judging there was something unusually wrong, I cut through, 
and found the cartilages had taken on an abnormal growth which 
almost closed the trachea. Introducing the tube I was able to 
allow breathing to take place, but when removed collapse would 
follow. Knowing something would have to be done to overcome 
that difficulty, and not finding any information in any of our 
works, I was thrown on my own resources. Procuring a silver 
plate four inches long and three and a half inches wide, I formed 
it into an incomplete tube having two clasps, one and a half 
inches apart in front, and fastened with silver rivets. All being 
in readiness I dissected round the trachea to the back part, 
removing three rings completely, except a small portion at the 
posterior part which seemed to be healthy. I used cocaine as an 
anaesthetic. I then inserted the tube upwards, bringing it back to 
place, clasping over the upper and lower rings, and closing the 
opening with silk sutures. After allowing the filly her freedom, 
found all difficulty of breathing had been overcome, never miss¬ 
ing a feed, being apparently healthy, excepting the wound. 
Inside of four weeks the wound was completely healed with a 
slight enlargement, over which I applied an absorbent blister, 
which reduced it completely. I have frequently seen it run fast 
when playing, and it is impossible to notice from the breathing 
that she carries a silver tube in the windpipe. 
In conclusion, in giving this communication I hope I have at 
least advanced an idea that may be of some benefit to our profes¬ 
sion. 
Rabies in Fietus. —According to M. G. Zaigari, the bulb or 
spinal marrow of foetus of rabid females is not virulent—neither 
is the milk or the amniotic fluid of the mother—neither any of 
the fluid of the foetus. In other words, in the rabid female, the 
organism of the foetus is not contaminated.— (Hevue Scieriti- 
figue. 
