Plate IV 



Fig. 2. 



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Fig. 



3- 









fa^ffife 





ig. 4. Fig. 5. Fig. 6. 



Fig. 1. Epithelioma from a Turbot. 



Figs. 2, 3 and 4. Fibrosis of the liver from a Conger. 



Figs. 5 and 6. Benign tumours in a Halibut. 



