may be used. A ^solutiou of cunosive siiMiiiiale (1 pari 

 to J,UOO of v\aler) is also .siilticieiu, bin iiiusr be iise.l 

 with great care, rworsei) recomuiends petioleuni in 

 this disease aud advises tliat a drop of this substance 

 shall be placed in the nasal passa<re of the diseased 

 fowl, and thai the diseased membranes be treated with 

 light applications apj)lied with a small brush. If the 

 nose is stopped up, peroxide of hydros-eu. diluted with 

 an equal amo.unt of water, may be injected with a glass 

 and rubber medicine dropper. If tlie dropper has a 

 bent point, the medicine may be squirted into the back 

 of the nose through the openings in the roof of the 

 mouth. 



Roup or diphtheria may be prevented by avoiding 

 unsanitary conditions, by enforcing cleanliness, disin- 

 fecting frequently and preventing the introduction of 

 foreign fowls into the flock until they have been kept 

 isolated long enouf-'h to make sure that they are 

 healthy. 



Cases have been reported from time to time in which 

 it has been claimed that diphtheria of fowls has been 

 conveyed to people and vice versa. Recent investiga- 

 tions, however, indicate that this disease in man and 

 birds is caused by different organisms, and that the 

 jirobability of transmission is not very great. 



With reference to this matter. Dr. V. A. Moore 

 writes as follows:* "Altho^ugh the number of reported 

 <^aaes of the transmission of diphtheria to the human 

 species and vice versa is small in comparison with the 

 extent of the disease in poultry, the evidence that sucli 

 a transmission is possible is quite sufBcient to discour 

 age the careless handling of diseased fowls. It is 

 quite a common practice, usuallv in the rural districts. 



•Rulletln No. 8. TT. S. n^partment nf .Agricult 



