92 VEGETABLE PARASITES. 



Regarding the breeds affected bv Favus, Ziirn states 

 that if all birds are affected, the larger breeds and 

 those of Cochin-China descent are most liable to it. 

 Bantams are also noticed bv Neumann. Recently I 

 have had Dorkings severely attacked. A Dorking 

 cock with favic scutula on one side of the head was 

 allowed to run with some hens (Dorking) ; only 

 one, however, caught the infection, and this was an 

 old hen in moult, none of the other birds, which were 

 all young and healthy, were affected. 



Poultry Favus transmitted to Man. 



It is important to note that poultry Favus can be 

 transmitted to man. This especially happens if there 

 is a slightly abraded surface. Care, therefore, should 

 be taken in handling diseased fowls, as it is any- 

 thing but a nice human complaint, and not so readily 

 amenable to treatment as in poultry. 



Minute Appearance of the Fungus. 



The fungus can easily be studied under the micro- 

 scope by shaking the dusty matter that will be 

 observed under one of the detached crusts taken 

 from the fowl. This dust should be moistened with 

 water and a small drop of acetic acid, when it will be 

 seen that the favic cups are formed of thread-like 

 mycelia and spores, together with epithelial scales 

 detached from the skin of the ' host.' There will 

 also be seen tubes containing spores, and between 

 these and the mycelia minute granules in a viscid 



