PLATE IV. 



Fio. 78. Cod, diseased liver, section across anterior portion. 



79. ,, ,, ,, body observed floating in the green fluid. Enlarged. 



""J. ,, ,, ,, ,, ,, ,, ,, ,, ,, 



81. ,, ,, ,, tuberous growth attached to vessels. ,, 



82. ,, ,, ,, solidified, st. = strand of normal liver tissue. 



83. Cod, diseased liver (Fig 78). Dark green spore from green fluid. 

 Enlarged. 



84. Cod, diseased liver, colourless ovum, about "1 mm. in diam. It is 

 drawn to the same scale as Fig. 92. 



85. Cod, diseased liver. Egg containing green cell, g. Enlarged. 



86. ,, ,, ,, ,, ,, green nucleated cells, g. 

 Enlarged. 



87. Cod, diseased liver. Spore from egg, x., Fig. 92. Enlarged. 



88. ,, ,, ,, Bright green bodies observed in the green fluid. 

 Enlarged. 



89. Cod, diseased liver. Dark amber body found in the green fluid. The 

 drawing shows its apparent size with Obj. 4 mm. 



90. Cod, diseased liver. Cells which have escaped from the ova. Enlarged. 



91. Plaice with deep ulcer on its back. Reduced. 



92. Cod, diseased liver (Fig. 78), Portion of a vessel snipped off close to 

 a mass of tubers. Ovum, y. is "45 mm. in diameter. Enlarged. 



93. Plaice with flattened external tumour (cp. Fig. 96). 



94. Cod, pendulous tumour attached to the rete mirabile of the swim- 

 bladder. Some of the corpuscles in the fluid. Enlarged. 



95. Lemon Sole (Pleuronectus microcephalus). External tumour. Some 

 of the corpuscles from the fluid in tumour (cp. Figs. 100 and 102). 

 Enlarged. 



96. Plaice with flattened tumour (Fig. 93). Section of body and tumour. 



97. Cod, pendulous tumour attached to the rete mirabile of the swim- 

 bladder. Slice of tumour, about natural size. 



98. Cod, pendulous tumour attached to rete mirabile of swim-bladder 



x i 

 x if- 



99. Porbeagle Shark (Lamna cornubica). Section through external tumour. 



100. Lemon Sole (Pleuronectes microcephalus). Section of external tumour. 

 cp. Figs. 95, 102. Enlarged. 



101. Cat-fish, Anarrhichas lupus. Diagram of tumour in muscles. 



102. Lemon Sole with tumour on blind side. About ^, cp. 95 and 100. 



103. Skate (Bala). Mesenteric cyst. About nat. size. 



104. Humpty Cod, 14 inches, (35) long, dorsal view reduced. 



