604 
VERMIFUGE VAPOURS. 
deposit. My late father met with but one case during thirty-seven 
years’ practice, and that was situated in the fore coronet : the lame- 
ness was manifest three months before ossification took place, and 
was excessive the last month before the bony substance was 
visible. I have met with one case only, and that was situated 
on the coronet of the fore leg ; great lameness from the first ; 
substance high up, and visible six weeks after the lameness 
appeared. 
VERMIFUGE VAPOURS. 
ETHER, CHLOROFORM, OIL OF TURPENTINE, OR RECTIFIED OIL 
OF AMBER, USED SINGLY OR COMBINED, EFFECTUAL THERA- 
PEUTIC AGENTS FOR THE DESTRUCTION OF STRONGYLUS AND 
FILARIA IN THE BRONCHIAL PASSAGES OF CALVES, THROUGH 
NASAL INHALATION. 
To the farmer nothing is more detrimental to his young stock, 
while frequently attended with serious loss, than filarise or worms 
that infest the windpipe in young animals ; so abundant are they 
occasionally, that they nearly choke up the windpipe and air tubes. 
The cough induced by filariae differs in symptom from common 
catarrh : the hoose or cough dependent on parasites in the wind- 
pipe is subitaneous and spasmodic, being as abruptly left off as it 
was sudden in coming on, and evincing an apparent desire on the 
part of the animal to dislodge something from the epiglottis. From 
the periodicity of the cough in this disorder we might reasonably 
infer that it depended on the worms irritating the epiglottis ; for, 
the irritation being removed, the hoose instantaneously ceases, and 
the calf will immediately run and gambol about as soon as the 
cough subsides, until again annoyed by a fresh irritation. You 
may frequently see calves worn down almost to skeletons by irri- 
tation in this disorder, yet are lively, active, and retain their appe- 
tite. These symptoms differ from common cold or catarrh, in 
which the animal is dull, feverish, disinclined to move about, with 
a cautious cough, hurried respiration, loss of appetite, with coryza 
and defluxion from the nose. 
In administering the remedy, the method is to slightly elevate 
the head of the animal, and pour about two fluid drachms into 
each nostril, and allow it to vaporize : it will then, by the means 
of respiration, be disseminated through the air-passages, and thus 
destroy the filarise. In some cases it must be repeated two or three 
times, but once has frequently the desired effect ; and the relief 
