Traumatic Cysts in the Mucous Membrane of the Bursa of Fabricius 



1. Cockerel MF-89852 



2. Pullet MF-89862 



3. Cockerel MF-89,S79 



4. Cockerel MF-89923 



{Phnlomicrographs hy Professor \V . IJ . F^dvis, Botany Deparlmeiil , Massachusetts State College) 



