ASPERGILLOSIS 



207 



Fig. 104. Section through the lung of a grouse {Bonasa umbellus) dead of 

 spontaneous aspergillosis, showing filaments of mycelium. Gram-Weigert stain. 





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m. 



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Fig. 105. Histological tubercle in the heart muscle of a pigeon inoculated 

 intravenously with spores of Aspergillus jumigatus. 



