t T94 ] 



XII. Account of a species of Fasciola which 

 infests the Trachea of Poultry, with a mode 

 of Cure* 



By George Montagu, Esq; F. L. S. & M. W. f>. 



(Read 1st August 1808.^ 



Most persons in rural life, who have in the least 

 attended to their poultry, know, that young 

 chickens are subject to a fatal distemper, usually 

 termed the gapes, from the principal symptom of 

 the disorder ; which is a frequent gaping, attend- 

 ed with an extension of the neck, like suffocation, 

 and sometimes an apparent phthisical affection 

 or irritation of the lungs. This distemper, which 

 generally attacks them at the age of a month or 

 six weeks, is, I believe, found to obtain in . high 

 as well as in low situations, but whether the 

 nature of the soil, or that of the water, is produc- 

 tive of the cause, remains to be discovered. This 

 disease is produced by a species of fasciola 

 lodging within the trachea, frequently extending 

 from the pharynx to the trachea, but never, that I 

 have observed, into the. ]nn^, 



