106 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



cartilaginous layer in the posterior part of the bulbus. 

 They are continued over the lens. (5 and 6) The "supra- 

 choroid" and choroid, which are the pigment layers 

 betwen the retina and the choroidal gland. They are 

 produced anteriorly to the internal margin of the iris. 

 (T) The capsule of the crystalline lens. 



If we compare 3 with 2 in fig. 4 we shall see that a 

 new layer has been intercalated, between the conjunctival 

 and sclerotic elements of the cornea. This is fairly 

 thick, and consists of loose areolar tissue containing 

 lymphocytes in its interstices. Here and there, there are 

 small groups of blood capillaries ; some of these are shown 

 in the figure, and evidently they are capillaries that are 

 growing centrally from the main tumour in the marginal 

 parts round the eye. 



This abundant blood supply round the eye and in 

 the cornea itself is doubtless responsible for the growth 

 of the epithelial layer of the cornea. The small knob- 

 like, or even arborescent, growths on the conjunctiva have 

 the same structure as the latter layer, that is, they consist 

 of horny (in the sense that they have evident walls) cells, 

 spherical or polygonal in shape. They do not become 

 squamous towards their free surface, but are everywhere 

 of the same form. We cannot call these little growths 

 epitheliomata or papillomata since they have no core of 

 connective tissue. They are solid outgrowths from the 

 conjunctiva — conjunctival warts we may perhaps call 

 them. 



3. Papillary Cystadenoma in a Ling [Molva molva). 



In March, 1914, Mr. T. Bailey sent me a roe taken 

 from a Ling landed at Fleetwood by a steam-trawler. 

 The structure did not look in the least like a roe, but 



