EOAEING DYSPNOEA. 



623 



escaped from the guttural pouches, Hering noticed that there 

 was no air passed through the right nasal chamber. A flex- 

 ible tube passed freely into the pharynx through the left 

 nostril, but not through the right ; and an obstruction was 

 diagnosed, but of what nature, there was not sufficient evi- 

 dence to indicate. The animal was slaughtered, at the request 

 of the owner ; and the posterior opening of the right nasal 

 chamber was found closed by a fold of mucous membrane. 

 I have striven to shew this in the accompanying sketch, which 

 i made in Stuttgart from the dried head, in 1854, 



i-ig. Uo, 



