116 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



in the interstices of the fibrous bundles. Con- 

 nective tissue nuclei are shown. Apochromatic 

 lens. 



Plate III. Multiple Sarcomata in Halibut. 



Fig- 1. A small part of the growing margin of the 

 tumour shown in fig. 3, PI. II. Small oat- 

 shaped cells, about 00065 mm. in longest 

 diameter. Muscle fibres undergoing degenera- 

 tion. Some unchanged muscle fibres. Apochro- 

 matic lens. 



Fig. 2. Part of the same tumour near the margin. 

 Short spindle cells with a few round cells. 

 Apochromatic lens. 



Fig. 3. Part of the same tumour near the centre. The 

 sole tissue, in places, consists of small round 

 cells. Apochromatic lens. 



Fig. 4. Part of the same tumour in the central part 

 where there is melanin formation, and softening 

 due to necrosis. The tumour here is a 

 "mixed-cell" one. Few spindle cells. Many 

 small cells, larger irregularly-rounded cells, 

 multinuclear cells, "giant cells," some cell 

 debris and melanin deposits. Apochromatic 

 lens. 



Fig. 5. Part of the same tumour near the periphery, 

 but not a part of the capsule. The spindle 

 cells shown in fig. 2, PI. Ill, pass here and 

 there into a fibrous tissue in which the cells seem 

 to be produced to form coarse, loosely inter- 

 laced fibres. This is represented in the present 

 figure. Apochromatic lens. 



