VERMINOUS BRONCHITIS. 
189 
length, the female being longer than the male. It is generally 
believed that the female deposits the embryos directly into the 
bronchi of the host, but that the same do not develop there, but 
must necessarily be expelled from the animal to pass the first 
stages of their existence. They live in water for months, and 
it is claimed that the embryo under certain conditions, will, 
after having been dried a year or more, revive when placed in 
water. 
There are many unsatisfactory theories advanced as to how 
the worm enters the host. The most probable one being that 
said embryos enter the body with water or along with damp 
grasses. 
The attention is first directed to the disease by a slight 
cough, which gradually becomes stronger and husky, ending in 
paroxysms and suffocation. The worms and embryos are 
expelled from the mouth or nasal cavities along with mucus by 
severe coughing. When the progress of the disease is slower 
the symptoms are milder, but owing to disordered nutrition, loss 
of appetite, etc., the animal rapidly emaciates. 
Inhalations, combined with tonics, are apparently of the 
most benefit in the treatment of this disease. Intertracheal 
injections of either chloroform, turpentine and carbolic acid, or 
oil of amber, appear to be of benefit, but are unsatisfactory on 
account of swellings and abscesses when the fluids get into the 
tissues. 
The best results were obtained from a mixture of chloro¬ 
form and oil of turpentine or amber, equal parts, also a little 
formaldehyde. One or two teaspoonfuls of this mixture was 
poured into the nostrils and allowed to vaporize. 
Any bitter stimulating tonic, arousing digestive function, 
may be given. 
Owing to the unsatisfactory results to be obtained from any 
treatment it is of obvious importance to prevent the spread of 
the disease as much as possible. Ignorance as to the life his¬ 
tory of the parasite renders any prophylactic measure rather 
uncertain, recognizing, however, the utility of drying and 
