14 ART. 15. H. OIISHIMA : SOME OBSERVATIONS 



This makes me sujipose that lie saw his " Drüsenkappe " in 

 paratangential sections (fig. 7), in which one often sees structures 

 somewhat resembling those of the salivary gland, the connective 

 tissue dividing the cells into many groups. Each cell of the 

 "Kappe" contains a rounded nucleus and a very finely granulated 

 cell body readily stainable with eosin and orange-G, and rather 

 hard in sectioning. I have found clear vacuoles {vc) in some 

 of these cells, sometimes minute and inconspicuous, at other times 

 relatively large. On examining Brauer's recent work, I find 

 in his descriptions of Polyijmus, Siernoptijx and Argyropeleous, 

 that his *' Linsenkörper " or " linsenförmiger Körper," which 

 forms a typical lenticular body, agrees exactly with the layer 

 in question, this being only less thick than in Brauer's 

 species. I will consequently follow Gaiti and Brauer in 

 regarding this layer as a lens, though it must be remarked 

 that in this case, owing to its form, it can not serve as 

 a condenser. 



The gelatinous connective tissue directly covers the outer 

 surface of the lens and is exposed directly to the exterior 

 (Textfig. 4, G). It has, as I have already mentioned, a slight 

 outward convexity in the fresh state, which made Mangold 

 take it for the lens. The tissue is loose and transparent and 

 has no light-refracting property necessary for a lens. It is 

 shrunken in preserved specimens. 



The organ receives a rich supply of blood, the vessels becoming 

 markedly impregnated by Cajal's method. They penetrate the 

 reflector at several places and then split up into capillaries 

 which ramify in the interior. They are more abundant in the 

 funnel-shaped outer, than in the inner, section of the organ. 



On the other hand, my attempts to find out the nerves 



